Home / 143,617.56-215,559.46-72,589.70

Finding the Fourth Proportional to 143,617.56, 215,559.46 and 72,589.70

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Solution

The fourth proportional to 143,617.56, 215,559.46 and 72,589.70 is: 108,951.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,617.56 : 215,559.46 = 72,589.70 : x
  2. Step 2: Convert to fraction form
    143,617.56/215,559.46 = 72,589.70/x
  3. Step 3: Cross multiply
    143,617.56x = 215,559.46 × 72,589.70
  4. Step 4: Simplify right side
    143,617.56x = 15,647,395,138.18
  5. Step 5: Solve for x
    x = 15,647,395,138.18/143,617.56
  6. Step 6: Final answer
    x = 108,951.82

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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.