Home / 137,882.82-190,248.77-80,496.08

Finding the Fourth Proportional to 137,882.82, 190,248.77 and 80,496.08

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Solution

The fourth proportional to 137,882.82, 190,248.77 and 80,496.08 is: 111,067.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,882.82 : 190,248.77 = 80,496.08 : x
  2. Step 2: Convert to fraction form
    137,882.82/190,248.77 = 80,496.08/x
  3. Step 3: Cross multiply
    137,882.82x = 190,248.77 × 80,496.08
  4. Step 4: Simplify right side
    137,882.82x = 15,314,280,209.82
  5. Step 5: Solve for x
    x = 15,314,280,209.82/137,882.82
  6. Step 6: Final answer
    x = 111,067.36

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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.