Home / 123,442.62-170,303.85-91,254.52

Finding the Fourth Proportional to 123,442.62, 170,303.85 and 91,254.52

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Solution

The fourth proportional to 123,442.62, 170,303.85 and 91,254.52 is: 125,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,442.62 : 170,303.85 = 91,254.52 : x
  2. Step 2: Convert to fraction form
    123,442.62/170,303.85 = 91,254.52/x
  3. Step 3: Cross multiply
    123,442.62x = 170,303.85 × 91,254.52
  4. Step 4: Simplify right side
    123,442.62x = 15,540,995,660.14
  5. Step 5: Solve for x
    x = 15,540,995,660.14/123,442.62
  6. Step 6: Final answer
    x = 125,896.51

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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.