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Finding the Fourth Proportional to 137,401.60, 206,102.40 and 48,654.40

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Solution

The fourth proportional to 137,401.60, 206,102.40 and 48,654.40 is: 72,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,401.60 : 206,102.40 = 48,654.40 : x
  2. Step 2: Convert to fraction form
    137,401.60/206,102.40 = 48,654.40/x
  3. Step 3: Cross multiply
    137,401.60x = 206,102.40 × 48,654.40
  4. Step 4: Simplify right side
    137,401.60x = 10,027,788,610.56
  5. Step 5: Solve for x
    x = 10,027,788,610.56/137,401.60
  6. Step 6: Final answer
    x = 72,981.60

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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.