Home / 156,581.38-216,076.39-84,959.92

Finding the Fourth Proportional to 156,581.38, 216,076.39 and 84,959.92

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Solution

The fourth proportional to 156,581.38, 216,076.39 and 84,959.92 is: 117,241.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,581.38 : 216,076.39 = 84,959.92 : x
  2. Step 2: Convert to fraction form
    156,581.38/216,076.39 = 84,959.92/x
  3. Step 3: Cross multiply
    156,581.38x = 216,076.39 × 84,959.92
  4. Step 4: Simplify right side
    156,581.38x = 18,357,832,808.29
  5. Step 5: Solve for x
    x = 18,357,832,808.29/156,581.38
  6. Step 6: Final answer
    x = 117,241.48

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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.