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Finding the Fourth Proportional to 103,445.90, 155,168.85 and 33,332.30

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Solution

The fourth proportional to 103,445.90, 155,168.85 and 33,332.30 is: 49,998.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,445.90 : 155,168.85 = 33,332.30 : x
  2. Step 2: Convert to fraction form
    103,445.90/155,168.85 = 33,332.30/x
  3. Step 3: Cross multiply
    103,445.90x = 155,168.85 × 33,332.30
  4. Step 4: Simplify right side
    103,445.90x = 5,172,134,658.86
  5. Step 5: Solve for x
    x = 5,172,134,658.86/103,445.90
  6. Step 6: Final answer
    x = 49,998.45

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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.