Home / 143,546.64-215,257.20-72,425.52

Finding the Fourth Proportional to 143,546.64, 215,257.20 and 72,425.52

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Solution

The fourth proportional to 143,546.64, 215,257.20 and 72,425.52 is: 108,606.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,546.64 : 215,257.20 = 72,425.52 : x
  2. Step 2: Convert to fraction form
    143,546.64/215,257.20 = 72,425.52/x
  3. Step 3: Cross multiply
    143,546.64x = 215,257.20 × 72,425.52
  4. Step 4: Simplify right side
    143,546.64x = 15,590,114,643.74
  5. Step 5: Solve for x
    x = 15,590,114,643.74/143,546.64
  6. Step 6: Final answer
    x = 108,606.61

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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.