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Finding the Fourth Proportional to 103,649.49, 155,487.92 and 36,182.74

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Solution

The fourth proportional to 103,649.49, 155,487.92 and 36,182.74 is: 54,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,649.49 : 155,487.92 = 36,182.74 : x
  2. Step 2: Convert to fraction form
    103,649.49/155,487.92 = 36,182.74/x
  3. Step 3: Cross multiply
    103,649.49x = 155,487.92 × 36,182.74
  4. Step 4: Simplify right side
    103,649.49x = 5,625,978,995.95
  5. Step 5: Solve for x
    x = 5,625,978,995.95/103,649.49
  6. Step 6: Final answer
    x = 54,278.89

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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.