Home / 141,572.08-195,369.51-77,909.88

Finding the Fourth Proportional to 141,572.08, 195,369.51 and 77,909.88

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Solution

The fourth proportional to 141,572.08, 195,369.51 and 77,909.88 is: 107,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,572.08 : 195,369.51 = 77,909.88 : x
  2. Step 2: Convert to fraction form
    141,572.08/195,369.51 = 77,909.88/x
  3. Step 3: Cross multiply
    141,572.08x = 195,369.51 × 77,909.88
  4. Step 4: Simplify right side
    141,572.08x = 15,221,215,079.76
  5. Step 5: Solve for x
    x = 15,221,215,079.76/141,572.08
  6. Step 6: Final answer
    x = 107,515.66

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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.