Home / 124,755.18-172,162.13-68,166.55

Finding the Fourth Proportional to 124,755.18, 172,162.13 and 68,166.55

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Solution

The fourth proportional to 124,755.18, 172,162.13 and 68,166.55 is: 94,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,755.18 : 172,162.13 = 68,166.55 : x
  2. Step 2: Convert to fraction form
    124,755.18/172,162.13 = 68,166.55/x
  3. Step 3: Cross multiply
    124,755.18x = 172,162.13 × 68,166.55
  4. Step 4: Simplify right side
    124,755.18x = 11,735,698,442.75
  5. Step 5: Solve for x
    x = 11,735,698,442.75/124,755.18
  6. Step 6: Final answer
    x = 94,069.83

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1.5x scale

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.