Home / 123,386.40-170,273.02-66,797.76

Finding the Fourth Proportional to 123,386.40, 170,273.02 and 66,797.76

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Solution

The fourth proportional to 123,386.40, 170,273.02 and 66,797.76 is: 92,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,386.40 : 170,273.02 = 66,797.76 : x
  2. Step 2: Convert to fraction form
    123,386.40/170,273.02 = 66,797.76/x
  3. Step 3: Cross multiply
    123,386.40x = 170,273.02 × 66,797.76
  4. Step 4: Simplify right side
    123,386.40x = 11,373,856,324.44
  5. Step 5: Solve for x
    x = 11,373,856,324.44/123,386.40
  6. Step 6: Final answer
    x = 92,180.79

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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.