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Finding the Fourth Proportional to 186,108.60, 279,854.10 and 155,695.80

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Solution

The fourth proportional to 186,108.60, 279,854.10 and 155,695.80 is: 234,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,108.60 : 279,854.10 = 155,695.80 : x
  2. Step 2: Convert to fraction form
    186,108.60/279,854.10 = 155,695.80/x
  3. Step 3: Cross multiply
    186,108.60x = 279,854.10 × 155,695.80
  4. Step 4: Simplify right side
    186,108.60x = 43,572,107,982.78
  5. Step 5: Solve for x
    x = 43,572,107,982.78/186,108.60
  6. Step 6: Final answer
    x = 234,121.95

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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.