Home / 156,240.09-215,610.25-84,618.47

Finding the Fourth Proportional to 156,240.09, 215,610.25 and 84,618.47

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Solution

The fourth proportional to 156,240.09, 215,610.25 and 84,618.47 is: 116,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,240.09 : 215,610.25 = 84,618.47 : x
  2. Step 2: Convert to fraction form
    156,240.09/215,610.25 = 84,618.47/x
  3. Step 3: Cross multiply
    156,240.09x = 215,610.25 × 84,618.47
  4. Step 4: Simplify right side
    156,240.09x = 18,244,609,471.32
  5. Step 5: Solve for x
    x = 18,244,609,471.32/156,240.09
  6. Step 6: Final answer
    x = 116,772.91

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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.