Home / 272,112.83-408,170.06-82,574.72

Finding the Fourth Proportional to 272,112.83, 408,170.06 and 82,574.72

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Solution

The fourth proportional to 272,112.83, 408,170.06 and 82,574.72 is: 123,862.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,112.83 : 408,170.06 = 82,574.72 : x
  2. Step 2: Convert to fraction form
    272,112.83/408,170.06 = 82,574.72/x
  3. Step 3: Cross multiply
    272,112.83x = 408,170.06 × 82,574.72
  4. Step 4: Simplify right side
    272,112.83x = 33,704,525,963.16
  5. Step 5: Solve for x
    x = 33,704,525,963.16/272,112.83
  6. Step 6: Final answer
    x = 123,862.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.