Home / 127,738.60-176,279.31-74,054.74

Finding the Fourth Proportional to 127,738.60, 176,279.31 and 74,054.74

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Solution

The fourth proportional to 127,738.60, 176,279.31 and 74,054.74 is: 102,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,738.60 : 176,279.31 = 74,054.74 : x
  2. Step 2: Convert to fraction form
    127,738.60/176,279.31 = 74,054.74/x
  3. Step 3: Cross multiply
    127,738.60x = 176,279.31 × 74,054.74
  4. Step 4: Simplify right side
    127,738.60x = 13,054,318,469.43
  5. Step 5: Solve for x
    x = 13,054,318,469.43/127,738.60
  6. Step 6: Final answer
    x = 102,195.57

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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.