Home / 137,584.77-206,342.97-77,639.56

Finding the Fourth Proportional to 137,584.77, 206,342.97 and 77,639.56

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Solution

The fourth proportional to 137,584.77, 206,342.97 and 77,639.56 is: 116,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,584.77 : 206,342.97 = 77,639.56 : x
  2. Step 2: Convert to fraction form
    137,584.77/206,342.97 = 77,639.56/x
  3. Step 3: Cross multiply
    137,584.77x = 206,342.97 × 77,639.56
  4. Step 4: Simplify right side
    137,584.77x = 16,020,377,399.89
  5. Step 5: Solve for x
    x = 16,020,377,399.89/137,584.77
  6. Step 6: Final answer
    x = 116,440.05

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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.