Home / 137,913.80-206,822.10-49,170.20

Finding the Fourth Proportional to 137,913.80, 206,822.10 and 49,170.20

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Solution

The fourth proportional to 137,913.80, 206,822.10 and 49,170.20 is: 73,737.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,913.80 : 206,822.10 = 49,170.20 : x
  2. Step 2: Convert to fraction form
    137,913.80/206,822.10 = 49,170.20/x
  3. Step 3: Cross multiply
    137,913.80x = 206,822.10 × 49,170.20
  4. Step 4: Simplify right side
    137,913.80x = 10,169,484,021.42
  5. Step 5: Solve for x
    x = 10,169,484,021.42/137,913.80
  6. Step 6: Final answer
    x = 73,737.97

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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.