Home / 123,364.04-170,243.24-66,775.56

Finding the Fourth Proportional to 123,364.04, 170,243.24 and 66,775.56

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Solution

The fourth proportional to 123,364.04, 170,243.24 and 66,775.56 is: 92,150.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,364.04 : 170,243.24 = 66,775.56 : x
  2. Step 2: Convert to fraction form
    123,364.04/170,243.24 = 66,775.56/x
  3. Step 3: Cross multiply
    123,364.04x = 170,243.24 × 66,775.56
  4. Step 4: Simplify right side
    123,364.04x = 11,368,087,687.21
  5. Step 5: Solve for x
    x = 11,368,087,687.21/123,364.04
  6. Step 6: Final answer
    x = 92,150.74

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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.