Home / 123,765.12-170,795.88-67,176.48

Finding the Fourth Proportional to 123,765.12, 170,795.88 and 67,176.48

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Solution

The fourth proportional to 123,765.12, 170,795.88 and 67,176.48 is: 92,703.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,765.12 : 170,795.88 = 67,176.48 : x
  2. Step 2: Convert to fraction form
    123,765.12/170,795.88 = 67,176.48/x
  3. Step 3: Cross multiply
    123,765.12x = 170,795.88 × 67,176.48
  4. Step 4: Simplify right side
    123,765.12x = 11,473,466,016.90
  5. Step 5: Solve for x
    x = 11,473,466,016.90/123,765.12
  6. Step 6: Final answer
    x = 92,703.55

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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.