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Finding the Fourth Proportional to 149,654.76, 206,599.76 and 115,586.78

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Solution

The fourth proportional to 149,654.76, 206,599.76 and 115,586.78 is: 159,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,654.76 : 206,599.76 = 115,586.78 : x
  2. Step 2: Convert to fraction form
    149,654.76/206,599.76 = 115,586.78/x
  3. Step 3: Cross multiply
    149,654.76x = 206,599.76 × 115,586.78
  4. Step 4: Simplify right side
    149,654.76x = 23,880,201,007.17
  5. Step 5: Solve for x
    x = 23,880,201,007.17/149,654.76
  6. Step 6: Final answer
    x = 159,568.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.