Home / 156,108.36-215,429.17-84,488.43

Finding the Fourth Proportional to 156,108.36, 215,429.17 and 84,488.43

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Solution

The fourth proportional to 156,108.36, 215,429.17 and 84,488.43 is: 116,593.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,108.36 : 215,429.17 = 84,488.43 : x
  2. Step 2: Convert to fraction form
    156,108.36/215,429.17 = 84,488.43/x
  3. Step 3: Cross multiply
    156,108.36x = 215,429.17 × 84,488.43
  4. Step 4: Simplify right side
    156,108.36x = 18,201,273,104.56
  5. Step 5: Solve for x
    x = 18,201,273,104.56/156,108.36
  6. Step 6: Final answer
    x = 116,593.84

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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.