Home / 124,834.47-172,262.70-71,109.60

Finding the Fourth Proportional to 124,834.47, 172,262.70 and 71,109.60

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Solution

The fourth proportional to 124,834.47, 172,262.70 and 71,109.60 is: 98,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,834.47 : 172,262.70 = 71,109.60 : x
  2. Step 2: Convert to fraction form
    124,834.47/172,262.70 = 71,109.60/x
  3. Step 3: Cross multiply
    124,834.47x = 172,262.70 × 71,109.60
  4. Step 4: Simplify right side
    124,834.47x = 12,249,531,691.92
  5. Step 5: Solve for x
    x = 12,249,531,691.92/124,834.47
  6. Step 6: Final answer
    x = 98,126.20

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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.