Home / 115,332.40-159,155.10-67,617.53

Finding the Fourth Proportional to 115,332.40, 159,155.10 and 67,617.53

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Solution

The fourth proportional to 115,332.40, 159,155.10 and 67,617.53 is: 93,310.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,332.40 : 159,155.10 = 67,617.53 : x
  2. Step 2: Convert to fraction form
    115,332.40/159,155.10 = 67,617.53/x
  3. Step 3: Cross multiply
    115,332.40x = 159,155.10 × 67,617.53
  4. Step 4: Simplify right side
    115,332.40x = 10,761,674,748.90
  5. Step 5: Solve for x
    x = 10,761,674,748.90/115,332.40
  6. Step 6: Final answer
    x = 93,310.07

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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.