Home / 156,439.24-215,870.16-96,012.43

Finding the Fourth Proportional to 156,439.24, 215,870.16 and 96,012.43

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Solution

The fourth proportional to 156,439.24, 215,870.16 and 96,012.43 is: 132,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,439.24 : 215,870.16 = 96,012.43 : x
  2. Step 2: Convert to fraction form
    156,439.24/215,870.16 = 96,012.43/x
  3. Step 3: Cross multiply
    156,439.24x = 215,870.16 × 96,012.43
  4. Step 4: Simplify right side
    156,439.24x = 20,726,218,626.09
  5. Step 5: Solve for x
    x = 20,726,218,626.09/156,439.24
  6. Step 6: Final answer
    x = 132,487.34

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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.