Home / 86,550.10-129,825.15-82,273.30

Finding the Fourth Proportional to 86,550.10, 129,825.15 and 82,273.30

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Solution

The fourth proportional to 86,550.10, 129,825.15 and 82,273.30 is: 123,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,550.10 : 129,825.15 = 82,273.30 : x
  2. Step 2: Convert to fraction form
    86,550.10/129,825.15 = 82,273.30/x
  3. Step 3: Cross multiply
    86,550.10x = 129,825.15 × 82,273.30
  4. Step 4: Simplify right side
    86,550.10x = 10,681,143,513.50
  5. Step 5: Solve for x
    x = 10,681,143,513.50/86,550.10
  6. Step 6: Final answer
    x = 123,409.95

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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.