Home / 127,121.38-175,435.83-73,408.66

Finding the Fourth Proportional to 127,121.38, 175,435.83 and 73,408.66

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Solution

The fourth proportional to 127,121.38, 175,435.83 and 73,408.66 is: 101,308.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,121.38 : 175,435.83 = 73,408.66 : x
  2. Step 2: Convert to fraction form
    127,121.38/175,435.83 = 73,408.66/x
  3. Step 3: Cross multiply
    127,121.38x = 175,435.83 × 73,408.66
  4. Step 4: Simplify right side
    127,121.38x = 12,878,509,196.29
  5. Step 5: Solve for x
    x = 12,878,509,196.29/127,121.38
  6. Step 6: Final answer
    x = 101,308.76

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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.