Home / 87,834.20-131,444.10-80,461.40

Finding the Fourth Proportional to 87,834.20, 131,444.10 and 80,461.40

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Solution

The fourth proportional to 87,834.20, 131,444.10 and 80,461.40 is: 120,410.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,834.20 : 131,444.10 = 80,461.40 : x
  2. Step 2: Convert to fraction form
    87,834.20/131,444.10 = 80,461.40/x
  3. Step 3: Cross multiply
    87,834.20x = 131,444.10 × 80,461.40
  4. Step 4: Simplify right side
    87,834.20x = 10,576,176,307.74
  5. Step 5: Solve for x
    x = 10,576,176,307.74/87,834.20
  6. Step 6: Final answer
    x = 120,410.69

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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.