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Finding the Fourth Proportional to 104,001.60, 156,002.40 and 99,919.20

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Solution

The fourth proportional to 104,001.60, 156,002.40 and 99,919.20 is: 149,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,001.60 : 156,002.40 = 99,919.20 : x
  2. Step 2: Convert to fraction form
    104,001.60/156,002.40 = 99,919.20/x
  3. Step 3: Cross multiply
    104,001.60x = 156,002.40 × 99,919.20
  4. Step 4: Simplify right side
    104,001.60x = 15,587,635,006.08
  5. Step 5: Solve for x
    x = 15,587,635,006.08/104,001.60
  6. Step 6: Final answer
    x = 149,878.80

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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.