Home / 134,470.13-185,593.68-77,881.50

Finding the Fourth Proportional to 134,470.13, 185,593.68 and 77,881.50

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Solution

The fourth proportional to 134,470.13, 185,593.68 and 77,881.50 is: 107,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,470.13 : 185,593.68 = 77,881.50 : x
  2. Step 2: Convert to fraction form
    134,470.13/185,593.68 = 77,881.50/x
  3. Step 3: Cross multiply
    134,470.13x = 185,593.68 × 77,881.50
  4. Step 4: Simplify right side
    134,470.13x = 14,454,314,188.92
  5. Step 5: Solve for x
    x = 14,454,314,188.92/134,470.13
  6. Step 6: Final answer
    x = 107,490.90

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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.