Home / 134,645.35-185,802.13-74,212.67

Finding the Fourth Proportional to 134,645.35, 185,802.13 and 74,212.67

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Solution

The fourth proportional to 134,645.35, 185,802.13 and 74,212.67 is: 102,408.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,645.35 : 185,802.13 = 74,212.67 : x
  2. Step 2: Convert to fraction form
    134,645.35/185,802.13 = 74,212.67/x
  3. Step 3: Cross multiply
    134,645.35x = 185,802.13 × 74,212.67
  4. Step 4: Simplify right side
    134,645.35x = 13,788,872,158.99
  5. Step 5: Solve for x
    x = 13,788,872,158.99/134,645.35
  6. Step 6: Final answer
    x = 102,408.83

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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.