Home / 149,538.11-206,356.86-82,470.11

Finding the Fourth Proportional to 149,538.11, 206,356.86 and 82,470.11

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Solution

The fourth proportional to 149,538.11, 206,356.86 and 82,470.11 is: 113,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,538.11 : 206,356.86 = 82,470.11 : x
  2. Step 2: Convert to fraction form
    149,538.11/206,356.86 = 82,470.11/x
  3. Step 3: Cross multiply
    149,538.11x = 206,356.86 × 82,470.11
  4. Step 4: Simplify right side
    149,538.11x = 17,018,271,911.67
  5. Step 5: Solve for x
    x = 17,018,271,911.67/149,538.11
  6. Step 6: Final answer
    x = 113,805.59

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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.