Home / 98,635.74-147,781.35-82,102.02

Finding the Fourth Proportional to 98,635.74, 147,781.35 and 82,102.02

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Solution

The fourth proportional to 98,635.74, 147,781.35 and 82,102.02 is: 123,009.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,635.74 : 147,781.35 = 82,102.02 : x
  2. Step 2: Convert to fraction form
    98,635.74/147,781.35 = 82,102.02/x
  3. Step 3: Cross multiply
    98,635.74x = 147,781.35 × 82,102.02
  4. Step 4: Simplify right side
    98,635.74x = 12,133,147,353.33
  5. Step 5: Solve for x
    x = 12,133,147,353.33/98,635.74
  6. Step 6: Final answer
    x = 123,009.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.