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Finding the Fourth Proportional to 100,433.86, 150,593.68 and 77,629.66

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Solution

The fourth proportional to 100,433.86, 150,593.68 and 77,629.66 is: 116,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,433.86 : 150,593.68 = 77,629.66 : x
  2. Step 2: Convert to fraction form
    100,433.86/150,593.68 = 77,629.66/x
  3. Step 3: Cross multiply
    100,433.86x = 150,593.68 × 77,629.66
  4. Step 4: Simplify right side
    100,433.86x = 11,690,535,897.10
  5. Step 5: Solve for x
    x = 11,690,535,897.10/100,433.86
  6. Step 6: Final answer
    x = 116,400.35

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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.