Home / 126,081.36-173,936.16-72,353.52

Finding the Fourth Proportional to 126,081.36, 173,936.16 and 72,353.52

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Solution

The fourth proportional to 126,081.36, 173,936.16 and 72,353.52 is: 99,815.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,081.36 : 173,936.16 = 72,353.52 : x
  2. Step 2: Convert to fraction form
    126,081.36/173,936.16 = 72,353.52/x
  3. Step 3: Cross multiply
    126,081.36x = 173,936.16 × 72,353.52
  4. Step 4: Simplify right side
    126,081.36x = 12,584,893,431.28
  5. Step 5: Solve for x
    x = 12,584,893,431.28/126,081.36
  6. Step 6: Final answer
    x = 99,815.65

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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.