Home / 156,438.24-215,868.78-96,011.43

Finding the Fourth Proportional to 156,438.24, 215,868.78 and 96,011.43

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Solution

The fourth proportional to 156,438.24, 215,868.78 and 96,011.43 is: 132,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,438.24 : 215,868.78 = 96,011.43 : x
  2. Step 2: Convert to fraction form
    156,438.24/215,868.78 = 96,011.43/x
  3. Step 3: Cross multiply
    156,438.24x = 215,868.78 × 96,011.43
  4. Step 4: Simplify right side
    156,438.24x = 20,725,870,260.16
  5. Step 5: Solve for x
    x = 20,725,870,260.16/156,438.24
  6. Step 6: Final answer
    x = 132,485.96

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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.