Home / 137,887.36-206,864.28-47,917

Finding the Fourth Proportional to 137,887.36, 206,864.28 and 47,917

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Solution

The fourth proportional to 137,887.36, 206,864.28 and 47,917 is: 71,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,887.36 : 206,864.28 = 47,917 : x
  2. Step 2: Convert to fraction form
    137,887.36/206,864.28 = 47,917/x
  3. Step 3: Cross multiply
    137,887.36x = 206,864.28 × 47,917
  4. Step 4: Simplify right side
    137,887.36x = 9,912,315,704.76
  5. Step 5: Solve for x
    x = 9,912,315,704.76/137,887.36
  6. Step 6: Final answer
    x = 71,887.05

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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.