Home / 143,497.20-215,148.60-73,318.80

Finding the Fourth Proportional to 143,497.20, 215,148.60 and 73,318.80

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Solution

The fourth proportional to 143,497.20, 215,148.60 and 73,318.80 is: 109,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,497.20 : 215,148.60 = 73,318.80 : x
  2. Step 2: Convert to fraction form
    143,497.20/215,148.60 = 73,318.80/x
  3. Step 3: Cross multiply
    143,497.20x = 215,148.60 × 73,318.80
  4. Step 4: Simplify right side
    143,497.20x = 15,774,437,173.68
  5. Step 5: Solve for x
    x = 15,774,437,173.68/143,497.20
  6. Step 6: Final answer
    x = 109,928.54

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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.