Home / 123,939.57-170,973.65-80,944.22

Finding the Fourth Proportional to 123,939.57, 170,973.65 and 80,944.22

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Solution

The fourth proportional to 123,939.57, 170,973.65 and 80,944.22 is: 111,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,939.57 : 170,973.65 = 80,944.22 : x
  2. Step 2: Convert to fraction form
    123,939.57/170,973.65 = 80,944.22/x
  3. Step 3: Cross multiply
    123,939.57x = 170,973.65 × 80,944.22
  4. Step 4: Simplify right side
    123,939.57x = 13,839,328,335.08
  5. Step 5: Solve for x
    x = 13,839,328,335.08/123,939.57
  6. Step 6: Final answer
    x = 111,661.90

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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.