Home / 145,252.76-200,453.68-80,724.72

Finding the Fourth Proportional to 145,252.76, 200,453.68 and 80,724.72

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Solution

The fourth proportional to 145,252.76, 200,453.68 and 80,724.72 is: 111,402.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,252.76 : 200,453.68 = 80,724.72 : x
  2. Step 2: Convert to fraction form
    145,252.76/200,453.68 = 80,724.72/x
  3. Step 3: Cross multiply
    145,252.76x = 200,453.68 × 80,724.72
  4. Step 4: Simplify right side
    145,252.76x = 16,181,567,190.97
  5. Step 5: Solve for x
    x = 16,181,567,190.97/145,252.76
  6. Step 6: Final answer
    x = 111,402.82

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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.