Home / 123,023.10-169,777.52-68,578.85

Finding the Fourth Proportional to 123,023.10, 169,777.52 and 68,578.85

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Solution

The fourth proportional to 123,023.10, 169,777.52 and 68,578.85 is: 94,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,023.10 : 169,777.52 = 68,578.85 : x
  2. Step 2: Convert to fraction form
    123,023.10/169,777.52 = 68,578.85/x
  3. Step 3: Cross multiply
    123,023.10x = 169,777.52 × 68,578.85
  4. Step 4: Simplify right side
    123,023.10x = 11,643,147,416.17
  5. Step 5: Solve for x
    x = 11,643,147,416.17/123,023.10
  6. Step 6: Final answer
    x = 94,641.96

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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.