Home / 145,251.23-200,441.34-80,724.49

Finding the Fourth Proportional to 145,251.23, 200,441.34 and 80,724.49

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Solution

The fourth proportional to 145,251.23, 200,441.34 and 80,724.49 is: 111,396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,251.23 : 200,441.34 = 80,724.49 : x
  2. Step 2: Convert to fraction form
    145,251.23/200,441.34 = 80,724.49/x
  3. Step 3: Cross multiply
    145,251.23x = 200,441.34 × 80,724.49
  4. Step 4: Simplify right side
    145,251.23x = 16,180,524,445.31
  5. Step 5: Solve for x
    x = 16,180,524,445.31/145,251.23
  6. Step 6: Final answer
    x = 111,396.82

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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.