Home / 156,612.38-216,125.24-84,992.42

Finding the Fourth Proportional to 156,612.38, 216,125.24 and 84,992.42

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Solution

The fourth proportional to 156,612.38, 216,125.24 and 84,992.42 is: 117,289.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,612.38 : 216,125.24 = 84,992.42 : x
  2. Step 2: Convert to fraction form
    156,612.38/216,125.24 = 84,992.42/x
  3. Step 3: Cross multiply
    156,612.38x = 216,125.24 × 84,992.42
  4. Step 4: Simplify right side
    156,612.38x = 18,369,007,286.03
  5. Step 5: Solve for x
    x = 18,369,007,286.03/156,612.38
  6. Step 6: Final answer
    x = 117,289.63

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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.