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Finding the Fourth Proportional to 141,649.52, 212,229.14 and 99,449.60

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Solution

The fourth proportional to 141,649.52, 212,229.14 and 99,449.60 is: 149,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,649.52 : 212,229.14 = 99,449.60 : x
  2. Step 2: Convert to fraction form
    141,649.52/212,229.14 = 99,449.60/x
  3. Step 3: Cross multiply
    141,649.52x = 212,229.14 × 99,449.60
  4. Step 4: Simplify right side
    141,649.52x = 21,106,103,081.34
  5. Step 5: Solve for x
    x = 21,106,103,081.34/141,649.52
  6. Step 6: Final answer
    x = 149,002.29

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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.