Home / 129,972.79-195,031.27-63,413.47

Finding the Fourth Proportional to 129,972.79, 195,031.27 and 63,413.47

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Solution

The fourth proportional to 129,972.79, 195,031.27 and 63,413.47 is: 95,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,972.79 : 195,031.27 = 63,413.47 : x
  2. Step 2: Convert to fraction form
    129,972.79/195,031.27 = 63,413.47/x
  3. Step 3: Cross multiply
    129,972.79x = 195,031.27 × 63,413.47
  4. Step 4: Simplify right side
    129,972.79x = 12,367,609,589.21
  5. Step 5: Solve for x
    x = 12,367,609,589.21/129,972.79
  6. Step 6: Final answer
    x = 95,155.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.