Home / 156,359.73-215,789.70-130,821.04

Finding the Fourth Proportional to 156,359.73, 215,789.70 and 130,821.04

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Solution

The fourth proportional to 156,359.73, 215,789.70 and 130,821.04 is: 180,544.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,359.73 : 215,789.70 = 130,821.04 : x
  2. Step 2: Convert to fraction form
    156,359.73/215,789.70 = 130,821.04/x
  3. Step 3: Cross multiply
    156,359.73x = 215,789.70 × 130,821.04
  4. Step 4: Simplify right side
    156,359.73x = 28,229,833,735.60
  5. Step 5: Solve for x
    x = 28,229,833,735.60/156,359.73
  6. Step 6: Final answer
    x = 180,544.14

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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.