Home / 83,242.41-125,134.29-66,782.54

Finding the Fourth Proportional to 83,242.41, 125,134.29 and 66,782.54

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Solution

The fourth proportional to 83,242.41, 125,134.29 and 66,782.54 is: 100,390.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,242.41 : 125,134.29 = 66,782.54 : x
  2. Step 2: Convert to fraction form
    83,242.41/125,134.29 = 66,782.54/x
  3. Step 3: Cross multiply
    83,242.41x = 125,134.29 × 66,782.54
  4. Step 4: Simplify right side
    83,242.41x = 8,356,785,101.63
  5. Step 5: Solve for x
    x = 8,356,785,101.63/83,242.41
  6. Step 6: Final answer
    x = 100,390.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.