Home / 123,453.09-170,365.19-66,864.33

Finding the Fourth Proportional to 123,453.09, 170,365.19 and 66,864.33

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Solution

The fourth proportional to 123,453.09, 170,365.19 and 66,864.33 is: 92,272.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,453.09 : 170,365.19 = 66,864.33 : x
  2. Step 2: Convert to fraction form
    123,453.09/170,365.19 = 66,864.33/x
  3. Step 3: Cross multiply
    123,453.09x = 170,365.19 × 66,864.33
  4. Step 4: Simplify right side
    123,453.09x = 11,391,353,950.35
  5. Step 5: Solve for x
    x = 11,391,353,950.35/123,453.09
  6. Step 6: Final answer
    x = 92,272.73

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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.