Home / 123,379.07-170,261.80-69,660.88

Finding the Fourth Proportional to 123,379.07, 170,261.80 and 69,660.88

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Solution

The fourth proportional to 123,379.07, 170,261.80 and 69,660.88 is: 96,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,379.07 : 170,261.80 = 69,660.88 : x
  2. Step 2: Convert to fraction form
    123,379.07/170,261.80 = 69,660.88/x
  3. Step 3: Cross multiply
    123,379.07x = 170,261.80 × 69,660.88
  4. Step 4: Simplify right side
    123,379.07x = 11,860,586,218.58
  5. Step 5: Solve for x
    x = 11,860,586,218.58/123,379.07
  6. Step 6: Final answer
    x = 96,131.27

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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.