Home / 131,586.72-197,400.78-56,728.14

Finding the Fourth Proportional to 131,586.72, 197,400.78 and 56,728.14

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Solution

The fourth proportional to 131,586.72, 197,400.78 and 56,728.14 is: 85,101.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,586.72 : 197,400.78 = 56,728.14 : x
  2. Step 2: Convert to fraction form
    131,586.72/197,400.78 = 56,728.14/x
  3. Step 3: Cross multiply
    131,586.72x = 197,400.78 × 56,728.14
  4. Step 4: Simplify right side
    131,586.72x = 11,198,179,083.95
  5. Step 5: Solve for x
    x = 11,198,179,083.95/131,586.72
  6. Step 6: Final answer
    x = 85,101.13

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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.