Home / 187,728.28-281,589.40-45,574.70

Finding the Fourth Proportional to 187,728.28, 281,589.40 and 45,574.70

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Solution

The fourth proportional to 187,728.28, 281,589.40 and 45,574.70 is: 68,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,728.28 : 281,589.40 = 45,574.70 : x
  2. Step 2: Convert to fraction form
    187,728.28/281,589.40 = 45,574.70/x
  3. Step 3: Cross multiply
    187,728.28x = 281,589.40 × 45,574.70
  4. Step 4: Simplify right side
    187,728.28x = 12,833,352,428.18
  5. Step 5: Solve for x
    x = 12,833,352,428.18/187,728.28
  6. Step 6: Final answer
    x = 68,361.32

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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.