Home / 151,694.20-209,336.61-83,711.80

Finding the Fourth Proportional to 151,694.20, 209,336.61 and 83,711.80

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Solution

The fourth proportional to 151,694.20, 209,336.61 and 83,711.80 is: 115,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,694.20 : 209,336.61 = 83,711.80 : x
  2. Step 2: Convert to fraction form
    151,694.20/209,336.61 = 83,711.80/x
  3. Step 3: Cross multiply
    151,694.20x = 209,336.61 × 83,711.80
  4. Step 4: Simplify right side
    151,694.20x = 17,523,944,429.00
  5. Step 5: Solve for x
    x = 17,523,944,429.00/151,694.20
  6. Step 6: Final answer
    x = 115,521.52

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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.