Home / 123,579.52-170,538.24-66,990.08

Finding the Fourth Proportional to 123,579.52, 170,538.24 and 66,990.08

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Solution

The fourth proportional to 123,579.52, 170,538.24 and 66,990.08 is: 92,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,579.52 : 170,538.24 = 66,990.08 : x
  2. Step 2: Convert to fraction form
    123,579.52/170,538.24 = 66,990.08/x
  3. Step 3: Cross multiply
    123,579.52x = 170,538.24 × 66,990.08
  4. Step 4: Simplify right side
    123,579.52x = 11,424,370,340.66
  5. Step 5: Solve for x
    x = 11,424,370,340.66/123,579.52
  6. Step 6: Final answer
    x = 92,445.50

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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.