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Finding the Fourth Proportional to 145,250.44, 200,441.25 and 80,719.48

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Solution

The fourth proportional to 145,250.44, 200,441.25 and 80,719.48 is: 111,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,250.44 : 200,441.25 = 80,719.48 : x
  2. Step 2: Convert to fraction form
    145,250.44/200,441.25 = 80,719.48/x
  3. Step 3: Cross multiply
    145,250.44x = 200,441.25 × 80,719.48
  4. Step 4: Simplify right side
    145,250.44x = 16,179,513,470.55
  5. Step 5: Solve for x
    x = 16,179,513,470.55/145,250.44
  6. Step 6: Final answer
    x = 111,390.46

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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.