Home / 123,729.48-170,747.14-67,140.84

Finding the Fourth Proportional to 123,729.48, 170,747.14 and 67,140.84

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Solution

The fourth proportional to 123,729.48, 170,747.14 and 67,140.84 is: 92,654.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,729.48 : 170,747.14 = 67,140.84 : x
  2. Step 2: Convert to fraction form
    123,729.48/170,747.14 = 67,140.84/x
  3. Step 3: Cross multiply
    123,729.48x = 170,747.14 × 67,140.84
  4. Step 4: Simplify right side
    123,729.48x = 11,464,106,407.20
  5. Step 5: Solve for x
    x = 11,464,106,407.20/123,729.48
  6. Step 6: Final answer
    x = 92,654.61

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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.