Home / 123,420.76-170,321.46-66,832.14

Finding the Fourth Proportional to 123,420.76, 170,321.46 and 66,832.14

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Solution

The fourth proportional to 123,420.76, 170,321.46 and 66,832.14 is: 92,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,420.76 : 170,321.46 = 66,832.14 : x
  2. Step 2: Convert to fraction form
    123,420.76/170,321.46 = 66,832.14/x
  3. Step 3: Cross multiply
    123,420.76x = 170,321.46 × 66,832.14
  4. Step 4: Simplify right side
    123,420.76x = 11,382,947,659.72
  5. Step 5: Solve for x
    x = 11,382,947,659.72/123,420.76
  6. Step 6: Final answer
    x = 92,228.79

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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.