Home / 127,842.46-176,383.50-74,116.75

Finding the Fourth Proportional to 127,842.46, 176,383.50 and 74,116.75

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Solution

The fourth proportional to 127,842.46, 176,383.50 and 74,116.75 is: 102,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,842.46 : 176,383.50 = 74,116.75 : x
  2. Step 2: Convert to fraction form
    127,842.46/176,383.50 = 74,116.75/x
  3. Step 3: Cross multiply
    127,842.46x = 176,383.50 × 74,116.75
  4. Step 4: Simplify right side
    127,842.46x = 13,072,972,203.45
  5. Step 5: Solve for x
    x = 13,072,972,203.45/127,842.46
  6. Step 6: Final answer
    x = 102,258.45

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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.