Home / 131,084.72-180,916.38-80,126.84

Finding the Fourth Proportional to 131,084.72, 180,916.38 and 80,126.84

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Solution

The fourth proportional to 131,084.72, 180,916.38 and 80,126.84 is: 110,586.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,084.72 : 180,916.38 = 80,126.84 : x
  2. Step 2: Convert to fraction form
    131,084.72/180,916.38 = 80,126.84/x
  3. Step 3: Cross multiply
    131,084.72x = 180,916.38 × 80,126.84
  4. Step 4: Simplify right side
    131,084.72x = 14,496,257,833.64
  5. Step 5: Solve for x
    x = 14,496,257,833.64/131,084.72
  6. Step 6: Final answer
    x = 110,586.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.