Home / 103,207.19-142,427.10-57,267.67

Finding the Fourth Proportional to 103,207.19, 142,427.10 and 57,267.67

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Solution

The fourth proportional to 103,207.19, 142,427.10 and 57,267.67 is: 79,030.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,207.19 : 142,427.10 = 57,267.67 : x
  2. Step 2: Convert to fraction form
    103,207.19/142,427.10 = 57,267.67/x
  3. Step 3: Cross multiply
    103,207.19x = 142,427.10 × 57,267.67
  4. Step 4: Simplify right side
    103,207.19x = 8,156,467,449.72
  5. Step 5: Solve for x
    x = 8,156,467,449.72/103,207.19
  6. Step 6: Final answer
    x = 79,030.03

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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.