Home / 137,664.33-206,496-77,665.59

Finding the Fourth Proportional to 137,664.33, 206,496 and 77,665.59

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Solution

The fourth proportional to 137,664.33, 206,496 and 77,665.59 is: 116,498.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,664.33 : 206,496 = 77,665.59 : x
  2. Step 2: Convert to fraction form
    137,664.33/206,496 = 77,665.59/x
  3. Step 3: Cross multiply
    137,664.33x = 206,496 × 77,665.59
  4. Step 4: Simplify right side
    137,664.33x = 16,037,633,672.64
  5. Step 5: Solve for x
    x = 16,037,633,672.64/137,664.33
  6. Step 6: Final answer
    x = 116,498.11

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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.