Home / 131,872.28-197,808.36-87,585.48

Finding the Fourth Proportional to 131,872.28, 197,808.36 and 87,585.48

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Solution

The fourth proportional to 131,872.28, 197,808.36 and 87,585.48 is: 131,378.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,872.28 : 197,808.36 = 87,585.48 : x
  2. Step 2: Convert to fraction form
    131,872.28/197,808.36 = 87,585.48/x
  3. Step 3: Cross multiply
    131,872.28x = 197,808.36 × 87,585.48
  4. Step 4: Simplify right side
    131,872.28x = 17,325,140,158.61
  5. Step 5: Solve for x
    x = 17,325,140,158.61/131,872.28
  6. Step 6: Final answer
    x = 131,378.18

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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.