Home / 156,982.91-216,631.92-89,006.40

Finding the Fourth Proportional to 156,982.91, 216,631.92 and 89,006.40

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Solution

The fourth proportional to 156,982.91, 216,631.92 and 89,006.40 is: 122,826.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,982.91 : 216,631.92 = 89,006.40 : x
  2. Step 2: Convert to fraction form
    156,982.91/216,631.92 = 89,006.40/x
  3. Step 3: Cross multiply
    156,982.91x = 216,631.92 × 89,006.40
  4. Step 4: Simplify right side
    156,982.91x = 19,281,627,324.29
  5. Step 5: Solve for x
    x = 19,281,627,324.29/156,982.91
  6. Step 6: Final answer
    x = 122,826.28

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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.