Home / 154,408.11-213,116.40-93,998.67

Finding the Fourth Proportional to 154,408.11, 213,116.40 and 93,998.67

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Solution

The fourth proportional to 154,408.11, 213,116.40 and 93,998.67 is: 129,738.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,408.11 : 213,116.40 = 93,998.67 : x
  2. Step 2: Convert to fraction form
    154,408.11/213,116.40 = 93,998.67/x
  3. Step 3: Cross multiply
    154,408.11x = 213,116.40 × 93,998.67
  4. Step 4: Simplify right side
    154,408.11x = 20,032,658,155.19
  5. Step 5: Solve for x
    x = 20,032,658,155.19/154,408.11
  6. Step 6: Final answer
    x = 129,738.38

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.