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Finding the Fourth Proportional to 102,654.70, 153,982.05 and 60,664.30

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Solution

The fourth proportional to 102,654.70, 153,982.05 and 60,664.30 is: 90,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,654.70 : 153,982.05 = 60,664.30 : x
  2. Step 2: Convert to fraction form
    102,654.70/153,982.05 = 60,664.30/x
  3. Step 3: Cross multiply
    102,654.70x = 153,982.05 × 60,664.30
  4. Step 4: Simplify right side
    102,654.70x = 9,341,213,275.82
  5. Step 5: Solve for x
    x = 9,341,213,275.82/102,654.70
  6. Step 6: Final answer
    x = 90,996.45

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Similar ratio
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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.