Home / 156,218.20-215,580.68-84,598.20

Finding the Fourth Proportional to 156,218.20, 215,580.68 and 84,598.20

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Solution

The fourth proportional to 156,218.20, 215,580.68 and 84,598.20 is: 116,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,218.20 : 215,580.68 = 84,598.20 : x
  2. Step 2: Convert to fraction form
    156,218.20/215,580.68 = 84,598.20/x
  3. Step 3: Cross multiply
    156,218.20x = 215,580.68 × 84,598.20
  4. Step 4: Simplify right side
    156,218.20x = 18,237,737,694.27
  5. Step 5: Solve for x
    x = 18,237,737,694.27/156,218.20
  6. Step 6: Final answer
    x = 116,745.28

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1.5x scale

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.