Home / 160,068.20-240,252.96-81,239

Finding the Fourth Proportional to 160,068.20, 240,252.96 and 81,239

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Solution

The fourth proportional to 160,068.20, 240,252.96 and 81,239 is: 121,934.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,068.20 : 240,252.96 = 81,239 : x
  2. Step 2: Convert to fraction form
    160,068.20/240,252.96 = 81,239/x
  3. Step 3: Cross multiply
    160,068.20x = 240,252.96 × 81,239
  4. Step 4: Simplify right side
    160,068.20x = 19,517,910,217.44
  5. Step 5: Solve for x
    x = 19,517,910,217.44/160,068.20
  6. Step 6: Final answer
    x = 121,934.96

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1.5x scale

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.