Home / 87,121.50-130,683.26-82,872.24

Finding the Fourth Proportional to 87,121.50, 130,683.26 and 82,872.24

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Solution

The fourth proportional to 87,121.50, 130,683.26 and 82,872.24 is: 124,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,121.50 : 130,683.26 = 82,872.24 : x
  2. Step 2: Convert to fraction form
    87,121.50/130,683.26 = 82,872.24/x
  3. Step 3: Cross multiply
    87,121.50x = 130,683.26 × 82,872.24
  4. Step 4: Simplify right side
    87,121.50x = 10,830,014,486.70
  5. Step 5: Solve for x
    x = 10,830,014,486.70/87,121.50
  6. Step 6: Final answer
    x = 124,309.32

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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.