Home / 115,787.16-159,735.56-68,018.96

Finding the Fourth Proportional to 115,787.16, 159,735.56 and 68,018.96

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Solution

The fourth proportional to 115,787.16, 159,735.56 and 68,018.96 is: 93,836.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,787.16 : 159,735.56 = 68,018.96 : x
  2. Step 2: Convert to fraction form
    115,787.16/159,735.56 = 68,018.96/x
  3. Step 3: Cross multiply
    115,787.16x = 159,735.56 × 68,018.96
  4. Step 4: Simplify right side
    115,787.16x = 10,865,045,527.45
  5. Step 5: Solve for x
    x = 10,865,045,527.45/115,787.16
  6. Step 6: Final answer
    x = 93,836.36

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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.