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Finding the Fourth Proportional to 138,850.80, 208,154.70 and 94,333.20

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Solution

The fourth proportional to 138,850.80, 208,154.70 and 94,333.20 is: 141,417.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,850.80 : 208,154.70 = 94,333.20 : x
  2. Step 2: Convert to fraction form
    138,850.80/208,154.70 = 94,333.20/x
  3. Step 3: Cross multiply
    138,850.80x = 208,154.70 × 94,333.20
  4. Step 4: Simplify right side
    138,850.80x = 19,635,898,946.04
  5. Step 5: Solve for x
    x = 19,635,898,946.04/138,850.80
  6. Step 6: Final answer
    x = 141,417.25

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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.