Home / 131,645.20-197,513.88-38,156.56

Finding the Fourth Proportional to 131,645.20, 197,513.88 and 38,156.56

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Solution

The fourth proportional to 131,645.20, 197,513.88 and 38,156.56 is: 57,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,645.20 : 197,513.88 = 38,156.56 : x
  2. Step 2: Convert to fraction form
    131,645.20/197,513.88 = 38,156.56/x
  3. Step 3: Cross multiply
    131,645.20x = 197,513.88 × 38,156.56
  4. Step 4: Simplify right side
    131,645.20x = 7,536,450,213.05
  5. Step 5: Solve for x
    x = 7,536,450,213.05/131,645.20
  6. Step 6: Final answer
    x = 57,248.20

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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.