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Finding the Fourth Proportional to 84,722.78, 126,883.78 and 73,568.84

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Solution

The fourth proportional to 84,722.78, 126,883.78 and 73,568.84 is: 110,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,722.78 : 126,883.78 = 73,568.84 : x
  2. Step 2: Convert to fraction form
    84,722.78/126,883.78 = 73,568.84/x
  3. Step 3: Cross multiply
    84,722.78x = 126,883.78 × 73,568.84
  4. Step 4: Simplify right side
    84,722.78x = 9,334,692,509.42
  5. Step 5: Solve for x
    x = 9,334,692,509.42/84,722.78
  6. Step 6: Final answer
    x = 110,179.25

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1.5x scale

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.