Home / 87,601.10-131,401.65-70,105.10

Finding the Fourth Proportional to 87,601.10, 131,401.65 and 70,105.10

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Solution

The fourth proportional to 87,601.10, 131,401.65 and 70,105.10 is: 105,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,601.10 : 131,401.65 = 70,105.10 : x
  2. Step 2: Convert to fraction form
    87,601.10/131,401.65 = 70,105.10/x
  3. Step 3: Cross multiply
    87,601.10x = 131,401.65 × 70,105.10
  4. Step 4: Simplify right side
    87,601.10x = 9,211,925,813.42
  5. Step 5: Solve for x
    x = 9,211,925,813.42/87,601.10
  6. Step 6: Final answer
    x = 105,157.65

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1.5x scale

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.