Home / 141,572.16-195,369.61-77,909.96

Finding the Fourth Proportional to 141,572.16, 195,369.61 and 77,909.96

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Solution

The fourth proportional to 141,572.16, 195,369.61 and 77,909.96 is: 107,515.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,572.16 : 195,369.61 = 77,909.96 : x
  2. Step 2: Convert to fraction form
    141,572.16/195,369.61 = 77,909.96/x
  3. Step 3: Cross multiply
    141,572.16x = 195,369.61 × 77,909.96
  4. Step 4: Simplify right side
    141,572.16x = 15,221,238,500.32
  5. Step 5: Solve for x
    x = 15,221,238,500.32/141,572.16
  6. Step 6: Final answer
    x = 107,515.76

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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.