Home / 156,099.38-215,417.14-84,479.92

Finding the Fourth Proportional to 156,099.38, 215,417.14 and 84,479.92

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Solution

The fourth proportional to 156,099.38, 215,417.14 and 84,479.92 is: 116,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,099.38 : 215,417.14 = 84,479.92 : x
  2. Step 2: Convert to fraction form
    156,099.38/215,417.14 = 84,479.92/x
  3. Step 3: Cross multiply
    156,099.38x = 215,417.14 × 84,479.92
  4. Step 4: Simplify right side
    156,099.38x = 18,198,422,004.09
  5. Step 5: Solve for x
    x = 18,198,422,004.09/156,099.38
  6. Step 6: Final answer
    x = 116,582.29

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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.