Home / 156,087.18-215,400.30-84,467.20

Finding the Fourth Proportional to 156,087.18, 215,400.30 and 84,467.20

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Solution

The fourth proportional to 156,087.18, 215,400.30 and 84,467.20 is: 116,564.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,087.18 : 215,400.30 = 84,467.20 : x
  2. Step 2: Convert to fraction form
    156,087.18/215,400.30 = 84,467.20/x
  3. Step 3: Cross multiply
    156,087.18x = 215,400.30 × 84,467.20
  4. Step 4: Simplify right side
    156,087.18x = 18,194,259,143.16
  5. Step 5: Solve for x
    x = 18,194,259,143.16/156,087.18
  6. Step 6: Final answer
    x = 116,564.73

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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.