Home / 98,016.30-135,292.95-77,908.86

Finding the Fourth Proportional to 98,016.30, 135,292.95 and 77,908.86

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Solution

The fourth proportional to 98,016.30, 135,292.95 and 77,908.86 is: 107,538.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,016.30 : 135,292.95 = 77,908.86 : x
  2. Step 2: Convert to fraction form
    98,016.30/135,292.95 = 77,908.86/x
  3. Step 3: Cross multiply
    98,016.30x = 135,292.95 × 77,908.86
  4. Step 4: Simplify right side
    98,016.30x = 10,540,519,500.54
  5. Step 5: Solve for x
    x = 10,540,519,500.54/98,016.30
  6. Step 6: Final answer
    x = 107,538.43

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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.