Home / 98,546.42-147,842.90-31,986.38

Finding the Fourth Proportional to 98,546.42, 147,842.90 and 31,986.38

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Solution

The fourth proportional to 98,546.42, 147,842.90 and 31,986.38 is: 47,987.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,546.42 : 147,842.90 = 31,986.38 : x
  2. Step 2: Convert to fraction form
    98,546.42/147,842.90 = 31,986.38/x
  3. Step 3: Cross multiply
    98,546.42x = 147,842.90 × 31,986.38
  4. Step 4: Simplify right side
    98,546.42x = 4,728,959,179.70
  5. Step 5: Solve for x
    x = 4,728,959,179.70/98,546.42
  6. Step 6: Final answer
    x = 47,987.12

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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.