Home / 129,971.79-195,029.77-63,412.47

Finding the Fourth Proportional to 129,971.79, 195,029.77 and 63,412.47

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Solution

The fourth proportional to 129,971.79, 195,029.77 and 63,412.47 is: 95,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,971.79 : 195,029.77 = 63,412.47 : x
  2. Step 2: Convert to fraction form
    129,971.79/195,029.77 = 63,412.47/x
  3. Step 3: Cross multiply
    129,971.79x = 195,029.77 × 63,412.47
  4. Step 4: Simplify right side
    129,971.79x = 12,367,318,147.02
  5. Step 5: Solve for x
    x = 12,367,318,147.02/129,971.79
  6. Step 6: Final answer
    x = 95,153.87

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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.