Home / 143,385.72-215,078.10-36,769.56

Finding the Fourth Proportional to 143,385.72, 215,078.10 and 36,769.56

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Solution

The fourth proportional to 143,385.72, 215,078.10 and 36,769.56 is: 55,154.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,385.72 : 215,078.10 = 36,769.56 : x
  2. Step 2: Convert to fraction form
    143,385.72/215,078.10 = 36,769.56/x
  3. Step 3: Cross multiply
    143,385.72x = 215,078.10 × 36,769.56
  4. Step 4: Simplify right side
    143,385.72x = 7,908,327,102.64
  5. Step 5: Solve for x
    x = 7,908,327,102.64/143,385.72
  6. Step 6: Final answer
    x = 55,154.22

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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.