Home / 127,804.43-176,370.82-74,121.28

Finding the Fourth Proportional to 127,804.43, 176,370.82 and 74,121.28

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Solution

The fourth proportional to 127,804.43, 176,370.82 and 74,121.28 is: 102,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,804.43 : 176,370.82 = 74,121.28 : x
  2. Step 2: Convert to fraction form
    127,804.43/176,370.82 = 74,121.28/x
  3. Step 3: Cross multiply
    127,804.43x = 176,370.82 × 74,121.28
  4. Step 4: Simplify right side
    127,804.43x = 13,072,830,306.82
  5. Step 5: Solve for x
    x = 13,072,830,306.82/127,804.43
  6. Step 6: Final answer
    x = 102,287.77

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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.