Home / 141,429.52-195,177.96-77,772.88

Finding the Fourth Proportional to 141,429.52, 195,177.96 and 77,772.88

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Solution

The fourth proportional to 141,429.52, 195,177.96 and 77,772.88 is: 107,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,429.52 : 195,177.96 = 77,772.88 : x
  2. Step 2: Convert to fraction form
    141,429.52/195,177.96 = 77,772.88/x
  3. Step 3: Cross multiply
    141,429.52x = 195,177.96 × 77,772.88
  4. Step 4: Simplify right side
    141,429.52x = 15,179,552,061.72
  5. Step 5: Solve for x
    x = 15,179,552,061.72/141,429.52
  6. Step 6: Final answer
    x = 107,329.45

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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.