Home / 100,037.26-138,049.46-54,715.08

Finding the Fourth Proportional to 100,037.26, 138,049.46 and 54,715.08

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Solution

The fourth proportional to 100,037.26, 138,049.46 and 54,715.08 is: 75,505.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,037.26 : 138,049.46 = 54,715.08 : x
  2. Step 2: Convert to fraction form
    100,037.26/138,049.46 = 54,715.08/x
  3. Step 3: Cross multiply
    100,037.26x = 138,049.46 × 54,715.08
  4. Step 4: Simplify right side
    100,037.26x = 7,553,387,247.86
  5. Step 5: Solve for x
    x = 7,553,387,247.86/100,037.26
  6. Step 6: Final answer
    x = 75,505.74

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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.