Home / 87,788.08-121,231.16-83,006.20

Finding the Fourth Proportional to 87,788.08, 121,231.16 and 83,006.20

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Solution

The fourth proportional to 87,788.08, 121,231.16 and 83,006.20 is: 114,627.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.08 : 121,231.16 = 83,006.20 : x
  2. Step 2: Convert to fraction form
    87,788.08/121,231.16 = 83,006.20/x
  3. Step 3: Cross multiply
    87,788.08x = 121,231.16 × 83,006.20
  4. Step 4: Simplify right side
    87,788.08x = 10,062,937,913.19
  5. Step 5: Solve for x
    x = 10,062,937,913.19/87,788.08
  6. Step 6: Final answer
    x = 114,627.61

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1.5x scale

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.