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Finding the Fourth Proportional to 123,480.47, 170,406.37 and 69,764.33

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Solution

The fourth proportional to 123,480.47, 170,406.37 and 69,764.33 is: 96,276.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,480.47 : 170,406.37 = 69,764.33 : x
  2. Step 2: Convert to fraction form
    123,480.47/170,406.37 = 69,764.33/x
  3. Step 3: Cross multiply
    123,480.47x = 170,406.37 × 69,764.33
  4. Step 4: Simplify right side
    123,480.47x = 11,888,286,526.08
  5. Step 5: Solve for x
    x = 11,888,286,526.08/123,480.47
  6. Step 6: Final answer
    x = 96,276.66

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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.