Home / 156,474.27-215,934.56-84,854.28

Finding the Fourth Proportional to 156,474.27, 215,934.56 and 84,854.28

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Solution

The fourth proportional to 156,474.27, 215,934.56 and 84,854.28 is: 117,098.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,474.27 : 215,934.56 = 84,854.28 : x
  2. Step 2: Convert to fraction form
    156,474.27/215,934.56 = 84,854.28/x
  3. Step 3: Cross multiply
    156,474.27x = 215,934.56 × 84,854.28
  4. Step 4: Simplify right side
    156,474.27x = 18,322,971,615.92
  5. Step 5: Solve for x
    x = 18,322,971,615.92/156,474.27
  6. Step 6: Final answer
    x = 117,098.94

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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.