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Finding the Fourth Proportional to 151,229.58, 208,694.79 and 84,161.58

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Solution

The fourth proportional to 151,229.58, 208,694.79 and 84,161.58 is: 116,141.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,229.58 : 208,694.79 = 84,161.58 : x
  2. Step 2: Convert to fraction form
    151,229.58/208,694.79 = 84,161.58/x
  3. Step 3: Cross multiply
    151,229.58x = 208,694.79 × 84,161.58
  4. Step 4: Simplify right side
    151,229.58x = 17,564,083,264.17
  5. Step 5: Solve for x
    x = 17,564,083,264.17/151,229.58
  6. Step 6: Final answer
    x = 116,141.85

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1.5x scale

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.