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Finding the Fourth Proportional to 100,505.68, 150,780.38 and 29,434.12

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Solution

The fourth proportional to 100,505.68, 150,780.38 and 29,434.12 is: 44,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,505.68 : 150,780.38 = 29,434.12 : x
  2. Step 2: Convert to fraction form
    100,505.68/150,780.38 = 29,434.12/x
  3. Step 3: Cross multiply
    100,505.68x = 150,780.38 × 29,434.12
  4. Step 4: Simplify right side
    100,505.68x = 4,438,087,798.57
  5. Step 5: Solve for x
    x = 4,438,087,798.57/100,505.68
  6. Step 6: Final answer
    x = 44,157.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.