Home / 144,787.92-199,805.40-81,126.96

Finding the Fourth Proportional to 144,787.92, 199,805.40 and 81,126.96

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Solution

The fourth proportional to 144,787.92, 199,805.40 and 81,126.96 is: 111,954.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,787.92 : 199,805.40 = 81,126.96 : x
  2. Step 2: Convert to fraction form
    144,787.92/199,805.40 = 81,126.96/x
  3. Step 3: Cross multiply
    144,787.92x = 199,805.40 × 81,126.96
  4. Step 4: Simplify right side
    144,787.92x = 16,209,604,693.58
  5. Step 5: Solve for x
    x = 16,209,604,693.58/144,787.92
  6. Step 6: Final answer
    x = 111,954.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.