Home / 137,943.86-206,915.48-38,103.80

Finding the Fourth Proportional to 137,943.86, 206,915.48 and 38,103.80

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Solution

The fourth proportional to 137,943.86, 206,915.48 and 38,103.80 is: 57,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,943.86 : 206,915.48 = 38,103.80 : x
  2. Step 2: Convert to fraction form
    137,943.86/206,915.48 = 38,103.80/x
  3. Step 3: Cross multiply
    137,943.86x = 206,915.48 × 38,103.80
  4. Step 4: Simplify right side
    137,943.86x = 7,884,266,066.82
  5. Step 5: Solve for x
    x = 7,884,266,066.82/137,943.86
  6. Step 6: Final answer
    x = 57,155.61

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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.