Home / 137,908.13-206,895.54-47,937.86

Finding the Fourth Proportional to 137,908.13, 206,895.54 and 47,937.86

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Solution

The fourth proportional to 137,908.13, 206,895.54 and 47,937.86 is: 71,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,908.13 : 206,895.54 = 47,937.86 : x
  2. Step 2: Convert to fraction form
    137,908.13/206,895.54 = 47,937.86/x
  3. Step 3: Cross multiply
    137,908.13x = 206,895.54 × 47,937.86
  4. Step 4: Simplify right side
    137,908.13x = 9,918,128,576.43
  5. Step 5: Solve for x
    x = 9,918,128,576.43/137,908.13
  6. Step 6: Final answer
    x = 71,918.37

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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.