Home / 123,780.33-170,805.04-98,348.25

Finding the Fourth Proportional to 123,780.33, 170,805.04 and 98,348.25

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Solution

The fourth proportional to 123,780.33, 170,805.04 and 98,348.25 is: 135,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,780.33 : 170,805.04 = 98,348.25 : x
  2. Step 2: Convert to fraction form
    123,780.33/170,805.04 = 98,348.25/x
  3. Step 3: Cross multiply
    123,780.33x = 170,805.04 × 98,348.25
  4. Step 4: Simplify right side
    123,780.33x = 16,798,377,104.35
  5. Step 5: Solve for x
    x = 16,798,377,104.35/123,780.33
  6. Step 6: Final answer
    x = 135,711.20

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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.