Home / 124,962.20-172,443.53-71,264.49

Finding the Fourth Proportional to 124,962.20, 172,443.53 and 71,264.49

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Solution

The fourth proportional to 124,962.20, 172,443.53 and 71,264.49 is: 98,342.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,962.20 : 172,443.53 = 71,264.49 : x
  2. Step 2: Convert to fraction form
    124,962.20/172,443.53 = 71,264.49/x
  3. Step 3: Cross multiply
    124,962.20x = 172,443.53 × 71,264.49
  4. Step 4: Simplify right side
    124,962.20x = 12,289,099,862.93
  5. Step 5: Solve for x
    x = 12,289,099,862.93/124,962.20
  6. Step 6: Final answer
    x = 98,342.54

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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.