Home / 143,819.63-215,729.33-38,638.59

Finding the Fourth Proportional to 143,819.63, 215,729.33 and 38,638.59

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Solution

The fourth proportional to 143,819.63, 215,729.33 and 38,638.59 is: 57,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,819.63 : 215,729.33 = 38,638.59 : x
  2. Step 2: Convert to fraction form
    143,819.63/215,729.33 = 38,638.59/x
  3. Step 3: Cross multiply
    143,819.63x = 215,729.33 × 38,638.59
  4. Step 4: Simplify right side
    143,819.63x = 8,335,476,939.65
  5. Step 5: Solve for x
    x = 8,335,476,939.65/143,819.63
  6. Step 6: Final answer
    x = 57,957.85

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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.