Home / 138,853.10-208,280.33-33,672.03

Finding the Fourth Proportional to 138,853.10, 208,280.33 and 33,672.03

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Solution

The fourth proportional to 138,853.10, 208,280.33 and 33,672.03 is: 50,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,853.10 : 208,280.33 = 33,672.03 : x
  2. Step 2: Convert to fraction form
    138,853.10/208,280.33 = 33,672.03/x
  3. Step 3: Cross multiply
    138,853.10x = 208,280.33 × 33,672.03
  4. Step 4: Simplify right side
    138,853.10x = 7,013,221,351.81
  5. Step 5: Solve for x
    x = 7,013,221,351.81/138,853.10
  6. Step 6: Final answer
    x = 50,508.21

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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.