Home / 141,471.12-195,229.13-77,807.55

Finding the Fourth Proportional to 141,471.12, 195,229.13 and 77,807.55

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Solution

The fourth proportional to 141,471.12, 195,229.13 and 77,807.55 is: 107,373.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,471.12 : 195,229.13 = 77,807.55 : x
  2. Step 2: Convert to fraction form
    141,471.12/195,229.13 = 77,807.55/x
  3. Step 3: Cross multiply
    141,471.12x = 195,229.13 × 77,807.55
  4. Step 4: Simplify right side
    141,471.12x = 15,190,299,904.89
  5. Step 5: Solve for x
    x = 15,190,299,904.89/141,471.12
  6. Step 6: Final answer
    x = 107,373.86

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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.