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Finding the Fourth Proportional to 104,425.60, 156,638.40 and 25,538.80

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Solution

The fourth proportional to 104,425.60, 156,638.40 and 25,538.80 is: 38,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,425.60 : 156,638.40 = 25,538.80 : x
  2. Step 2: Convert to fraction form
    104,425.60/156,638.40 = 25,538.80/x
  3. Step 3: Cross multiply
    104,425.60x = 156,638.40 × 25,538.80
  4. Step 4: Simplify right side
    104,425.60x = 4,000,356,769.92
  5. Step 5: Solve for x
    x = 4,000,356,769.92/104,425.60
  6. Step 6: Final answer
    x = 38,308.20

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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.