Home / 156,581.30-216,081.22-84,959.79

Finding the Fourth Proportional to 156,581.30, 216,081.22 and 84,959.79

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Solution

The fourth proportional to 156,581.30, 216,081.22 and 84,959.79 is: 117,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,581.30 : 216,081.22 = 84,959.79 : x
  2. Step 2: Convert to fraction form
    156,581.30/216,081.22 = 84,959.79/x
  3. Step 3: Cross multiply
    156,581.30x = 216,081.22 × 84,959.79
  4. Step 4: Simplify right side
    156,581.30x = 18,358,214,210.74
  5. Step 5: Solve for x
    x = 18,358,214,210.74/156,581.30
  6. Step 6: Final answer
    x = 117,243.97

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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.