Home / 123,268.08-170,109.88-66,679.46

Finding the Fourth Proportional to 123,268.08, 170,109.88 and 66,679.46

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Solution

The fourth proportional to 123,268.08, 170,109.88 and 66,679.46 is: 92,017.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,268.08 : 170,109.88 = 66,679.46 : x
  2. Step 2: Convert to fraction form
    123,268.08/170,109.88 = 66,679.46/x
  3. Step 3: Cross multiply
    123,268.08x = 170,109.88 × 66,679.46
  4. Step 4: Simplify right side
    123,268.08x = 11,342,833,921.82
  5. Step 5: Solve for x
    x = 11,342,833,921.82/123,268.08
  6. Step 6: Final answer
    x = 92,017.61

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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.