Home / 87,366.10-130,857.06-72,201.35

Finding the Fourth Proportional to 87,366.10, 130,857.06 and 72,201.35

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Solution

The fourth proportional to 87,366.10, 130,857.06 and 72,201.35 is: 108,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,366.10 : 130,857.06 = 72,201.35 : x
  2. Step 2: Convert to fraction form
    87,366.10/130,857.06 = 72,201.35/x
  3. Step 3: Cross multiply
    87,366.10x = 130,857.06 × 72,201.35
  4. Step 4: Simplify right side
    87,366.10x = 9,448,056,389.03
  5. Step 5: Solve for x
    x = 9,448,056,389.03/87,366.10
  6. Step 6: Final answer
    x = 108,143.28

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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.