Home / 98,067.06-135,328.28-54,456.90

Finding the Fourth Proportional to 98,067.06, 135,328.28 and 54,456.90

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Solution

The fourth proportional to 98,067.06, 135,328.28 and 54,456.90 is: 75,148.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,067.06 : 135,328.28 = 54,456.90 : x
  2. Step 2: Convert to fraction form
    98,067.06/135,328.28 = 54,456.90/x
  3. Step 3: Cross multiply
    98,067.06x = 135,328.28 × 54,456.90
  4. Step 4: Simplify right side
    98,067.06x = 7,369,558,611.13
  5. Step 5: Solve for x
    x = 7,369,558,611.13/98,067.06
  6. Step 6: Final answer
    x = 75,148.15

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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.