Home / 101,827.20-140,548.32-57,129.60

Finding the Fourth Proportional to 101,827.20, 140,548.32 and 57,129.60

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Solution

The fourth proportional to 101,827.20, 140,548.32 and 57,129.60 is: 78,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,827.20 : 140,548.32 = 57,129.60 : x
  2. Step 2: Convert to fraction form
    101,827.20/140,548.32 = 57,129.60/x
  3. Step 3: Cross multiply
    101,827.20x = 140,548.32 × 57,129.60
  4. Step 4: Simplify right side
    101,827.20x = 8,029,469,302.27
  5. Step 5: Solve for x
    x = 8,029,469,302.27/101,827.20
  6. Step 6: Final answer
    x = 78,853.88

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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.