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Finding the Fourth Proportional to 134,774.88, 186,062.23 and 81,071.88

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Solution

The fourth proportional to 134,774.88, 186,062.23 and 81,071.88 is: 111,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,774.88 : 186,062.23 = 81,071.88 : x
  2. Step 2: Convert to fraction form
    134,774.88/186,062.23 = 81,071.88/x
  3. Step 3: Cross multiply
    134,774.88x = 186,062.23 × 81,071.88
  4. Step 4: Simplify right side
    134,774.88x = 15,084,414,783.09
  5. Step 5: Solve for x
    x = 15,084,414,783.09/134,774.88
  6. Step 6: Final answer
    x = 111,923.04

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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.