Home / 123,337.38-170,205.56-66,748.74

Finding the Fourth Proportional to 123,337.38, 170,205.56 and 66,748.74

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Solution

The fourth proportional to 123,337.38, 170,205.56 and 66,748.74 is: 92,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,337.38 : 170,205.56 = 66,748.74 : x
  2. Step 2: Convert to fraction form
    123,337.38/170,205.56 = 66,748.74/x
  3. Step 3: Cross multiply
    123,337.38x = 170,205.56 × 66,748.74
  4. Step 4: Simplify right side
    123,337.38x = 11,361,006,670.99
  5. Step 5: Solve for x
    x = 11,361,006,670.99/123,337.38
  6. Step 6: Final answer
    x = 92,113.25

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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.