Home / 137,912.56-206,864.70-38,078.84

Finding the Fourth Proportional to 137,912.56, 206,864.70 and 38,078.84

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Solution

The fourth proportional to 137,912.56, 206,864.70 and 38,078.84 is: 57,117.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,912.56 : 206,864.70 = 38,078.84 : x
  2. Step 2: Convert to fraction form
    137,912.56/206,864.70 = 38,078.84/x
  3. Step 3: Cross multiply
    137,912.56x = 206,864.70 × 38,078.84
  4. Step 4: Simplify right side
    137,912.56x = 7,877,167,812.95
  5. Step 5: Solve for x
    x = 7,877,167,812.95/137,912.56
  6. Step 6: Final answer
    x = 57,117.12

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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.