Home / 134,543.28-185,702.64-77,987.52

Finding the Fourth Proportional to 134,543.28, 185,702.64 and 77,987.52

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Solution

The fourth proportional to 134,543.28, 185,702.64 and 77,987.52 is: 107,641.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,543.28 : 185,702.64 = 77,987.52 : x
  2. Step 2: Convert to fraction form
    134,543.28/185,702.64 = 77,987.52/x
  3. Step 3: Cross multiply
    134,543.28x = 185,702.64 × 77,987.52
  4. Step 4: Simplify right side
    134,543.28x = 14,482,488,351.05
  5. Step 5: Solve for x
    x = 14,482,488,351.05/134,543.28
  6. Step 6: Final answer
    x = 107,641.86

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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.