Home / 123,308.68-170,103.29-74,897.73

Finding the Fourth Proportional to 123,308.68, 170,103.29 and 74,897.73

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Solution

The fourth proportional to 123,308.68, 170,103.29 and 74,897.73 is: 103,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,308.68 : 170,103.29 = 74,897.73 : x
  2. Step 2: Convert to fraction form
    123,308.68/170,103.29 = 74,897.73/x
  3. Step 3: Cross multiply
    123,308.68x = 170,103.29 × 74,897.73
  4. Step 4: Simplify right side
    123,308.68x = 12,740,350,660.03
  5. Step 5: Solve for x
    x = 12,740,350,660.03/123,308.68
  6. Step 6: Final answer
    x = 103,320.79

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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.