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Finding the Fourth Proportional to 151,455.39, 209,044.06 and 94,138

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Solution

The fourth proportional to 151,455.39, 209,044.06 and 94,138 is: 129,932.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,455.39 : 209,044.06 = 94,138 : x
  2. Step 2: Convert to fraction form
    151,455.39/209,044.06 = 94,138/x
  3. Step 3: Cross multiply
    151,455.39x = 209,044.06 × 94,138
  4. Step 4: Simplify right side
    151,455.39x = 19,678,989,720.28
  5. Step 5: Solve for x
    x = 19,678,989,720.28/151,455.39
  6. Step 6: Final answer
    x = 129,932.58

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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.