Home / 124,865.13-172,314.45-68,276.46

Finding the Fourth Proportional to 124,865.13, 172,314.45 and 68,276.46

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Solution

The fourth proportional to 124,865.13, 172,314.45 and 68,276.46 is: 94,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,865.13 : 172,314.45 = 68,276.46 : x
  2. Step 2: Convert to fraction form
    124,865.13/172,314.45 = 68,276.46/x
  3. Step 3: Cross multiply
    124,865.13x = 172,314.45 × 68,276.46
  4. Step 4: Simplify right side
    124,865.13x = 11,765,020,652.85
  5. Step 5: Solve for x
    x = 11,765,020,652.85/124,865.13
  6. Step 6: Final answer
    x = 94,221.83

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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.