Home / 123,067.12-169,832.70-66,478.52

Finding the Fourth Proportional to 123,067.12, 169,832.70 and 66,478.52

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Solution

The fourth proportional to 123,067.12, 169,832.70 and 66,478.52 is: 91,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,067.12 : 169,832.70 = 66,478.52 : x
  2. Step 2: Convert to fraction form
    123,067.12/169,832.70 = 66,478.52/x
  3. Step 3: Cross multiply
    123,067.12x = 169,832.70 × 66,478.52
  4. Step 4: Simplify right side
    123,067.12x = 11,290,226,543.60
  5. Step 5: Solve for x
    x = 11,290,226,543.60/123,067.12
  6. Step 6: Final answer
    x = 91,740.40

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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.