Home / 123,288.44-170,128.35-75,535.29

Finding the Fourth Proportional to 123,288.44, 170,128.35 and 75,535.29

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Solution

The fourth proportional to 123,288.44, 170,128.35 and 75,535.29 is: 104,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,288.44 : 170,128.35 = 75,535.29 : x
  2. Step 2: Convert to fraction form
    123,288.44/170,128.35 = 75,535.29/x
  3. Step 3: Cross multiply
    123,288.44x = 170,128.35 × 75,535.29
  4. Step 4: Simplify right side
    123,288.44x = 12,850,694,254.47
  5. Step 5: Solve for x
    x = 12,850,694,254.47/123,288.44
  6. Step 6: Final answer
    x = 104,232.76

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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.