Home / 127,804.94-176,371.51-74,121.78

Finding the Fourth Proportional to 127,804.94, 176,371.51 and 74,121.78

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Solution

The fourth proportional to 127,804.94, 176,371.51 and 74,121.78 is: 102,288.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,804.94 : 176,371.51 = 74,121.78 : x
  2. Step 2: Convert to fraction form
    127,804.94/176,371.51 = 74,121.78/x
  3. Step 3: Cross multiply
    127,804.94x = 176,371.51 × 74,121.78
  4. Step 4: Simplify right side
    127,804.94x = 13,072,970,262.49
  5. Step 5: Solve for x
    x = 13,072,970,262.49/127,804.94
  6. Step 6: Final answer
    x = 102,288.46

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1.5x scale

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.