Home / 123,567.02-170,540.68-78,249.14

Finding the Fourth Proportional to 123,567.02, 170,540.68 and 78,249.14

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Solution

The fourth proportional to 123,567.02, 170,540.68 and 78,249.14 is: 107,995.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,567.02 : 170,540.68 = 78,249.14 : x
  2. Step 2: Convert to fraction form
    123,567.02/170,540.68 = 78,249.14/x
  3. Step 3: Cross multiply
    123,567.02x = 170,540.68 × 78,249.14
  4. Step 4: Simplify right side
    123,567.02x = 13,344,661,545.02
  5. Step 5: Solve for x
    x = 13,344,661,545.02/123,567.02
  6. Step 6: Final answer
    x = 107,995.33

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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.