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Finding the Fourth Proportional to 103,348.92, 154,878 and 82,195.08

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Solution

The fourth proportional to 103,348.92, 154,878 and 82,195.08 is: 123,177.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,348.92 : 154,878 = 82,195.08 : x
  2. Step 2: Convert to fraction form
    103,348.92/154,878 = 82,195.08/x
  3. Step 3: Cross multiply
    103,348.92x = 154,878 × 82,195.08
  4. Step 4: Simplify right side
    103,348.92x = 12,730,209,600.24
  5. Step 5: Solve for x
    x = 12,730,209,600.24/103,348.92
  6. Step 6: Final answer
    x = 123,177.00

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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.