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Finding the Fourth Proportional to 150,613.50, 207,825.04 and 90,169.68

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Solution

The fourth proportional to 150,613.50, 207,825.04 and 90,169.68 is: 124,421.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,613.50 : 207,825.04 = 90,169.68 : x
  2. Step 2: Convert to fraction form
    150,613.50/207,825.04 = 90,169.68/x
  3. Step 3: Cross multiply
    150,613.50x = 207,825.04 × 90,169.68
  4. Step 4: Simplify right side
    150,613.50x = 18,739,517,352.79
  5. Step 5: Solve for x
    x = 18,739,517,352.79/150,613.50
  6. Step 6: Final answer
    x = 124,421.23

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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.