Home / 123,328.80-170,192.73-69,613.38

Finding the Fourth Proportional to 123,328.80, 170,192.73 and 69,613.38

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Solution

The fourth proportional to 123,328.80, 170,192.73 and 69,613.38 is: 96,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,328.80 : 170,192.73 = 69,613.38 : x
  2. Step 2: Convert to fraction form
    123,328.80/170,192.73 = 69,613.38/x
  3. Step 3: Cross multiply
    123,328.80x = 170,192.73 × 69,613.38
  4. Step 4: Simplify right side
    123,328.80x = 11,847,691,186.73
  5. Step 5: Solve for x
    x = 11,847,691,186.73/123,328.80
  6. Step 6: Final answer
    x = 96,065.89

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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.