Home / 100,101.38-138,126.23-59,806.58

Finding the Fourth Proportional to 100,101.38, 138,126.23 and 59,806.58

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Solution

The fourth proportional to 100,101.38, 138,126.23 and 59,806.58 is: 82,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,101.38 : 138,126.23 = 59,806.58 : x
  2. Step 2: Convert to fraction form
    100,101.38/138,126.23 = 59,806.58/x
  3. Step 3: Cross multiply
    100,101.38x = 138,126.23 × 59,806.58
  4. Step 4: Simplify right side
    100,101.38x = 8,260,856,434.93
  5. Step 5: Solve for x
    x = 8,260,856,434.93/100,101.38
  6. Step 6: Final answer
    x = 82,524.90

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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.