Home / 156,086.72-215,399.68-84,466.74

Finding the Fourth Proportional to 156,086.72, 215,399.68 and 84,466.74

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Solution

The fourth proportional to 156,086.72, 215,399.68 and 84,466.74 is: 116,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,086.72 : 215,399.68 = 84,466.74 : x
  2. Step 2: Convert to fraction form
    156,086.72/215,399.68 = 84,466.74/x
  3. Step 3: Cross multiply
    156,086.72x = 215,399.68 × 84,466.74
  4. Step 4: Simplify right side
    156,086.72x = 18,194,108,766.64
  5. Step 5: Solve for x
    x = 18,194,108,766.64/156,086.72
  6. Step 6: Final answer
    x = 116,564.11

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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.