Home / 127,736.75-176,270.15-74,039.06

Finding the Fourth Proportional to 127,736.75, 176,270.15 and 74,039.06

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Solution

The fourth proportional to 127,736.75, 176,270.15 and 74,039.06 is: 102,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,736.75 : 176,270.15 = 74,039.06 : x
  2. Step 2: Convert to fraction form
    127,736.75/176,270.15 = 74,039.06/x
  3. Step 3: Cross multiply
    127,736.75x = 176,270.15 × 74,039.06
  4. Step 4: Simplify right side
    127,736.75x = 13,050,876,629.60
  5. Step 5: Solve for x
    x = 13,050,876,629.60/127,736.75
  6. Step 6: Final answer
    x = 102,170.10

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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.