Home / 180,139.29-270,378.23-91,456.44

Finding the Fourth Proportional to 180,139.29, 270,378.23 and 91,456.44

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Solution

The fourth proportional to 180,139.29, 270,378.23 and 91,456.44 is: 137,270.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,139.29 : 270,378.23 = 91,456.44 : x
  2. Step 2: Convert to fraction form
    180,139.29/270,378.23 = 91,456.44/x
  3. Step 3: Cross multiply
    180,139.29x = 270,378.23 × 91,456.44
  4. Step 4: Simplify right side
    180,139.29x = 24,727,829,912.02
  5. Step 5: Solve for x
    x = 24,727,829,912.02/180,139.29
  6. Step 6: Final answer
    x = 137,270.61

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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.