Home / 131,439.78-197,018.88-93,885.96

Finding the Fourth Proportional to 131,439.78, 197,018.88 and 93,885.96

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Solution

The fourth proportional to 131,439.78, 197,018.88 and 93,885.96 is: 140,728.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,439.78 : 197,018.88 = 93,885.96 : x
  2. Step 2: Convert to fraction form
    131,439.78/197,018.88 = 93,885.96/x
  3. Step 3: Cross multiply
    131,439.78x = 197,018.88 × 93,885.96
  4. Step 4: Simplify right side
    131,439.78x = 18,497,306,686.92
  5. Step 5: Solve for x
    x = 18,497,306,686.92/131,439.78
  6. Step 6: Final answer
    x = 140,728.38

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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.