Home / 127,278.72-175,723.56-82,034.64

Finding the Fourth Proportional to 127,278.72, 175,723.56 and 82,034.64

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Solution

The fourth proportional to 127,278.72, 175,723.56 and 82,034.64 is: 113,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,278.72 : 175,723.56 = 82,034.64 : x
  2. Step 2: Convert to fraction form
    127,278.72/175,723.56 = 82,034.64/x
  3. Step 3: Cross multiply
    127,278.72x = 175,723.56 × 82,034.64
  4. Step 4: Simplify right side
    127,278.72x = 14,415,418,984.12
  5. Step 5: Solve for x
    x = 14,415,418,984.12/127,278.72
  6. Step 6: Final answer
    x = 113,258.67

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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.