Home / 106,540.40-159,810.60-59,787.20

Finding the Fourth Proportional to 106,540.40, 159,810.60 and 59,787.20

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Solution

The fourth proportional to 106,540.40, 159,810.60 and 59,787.20 is: 89,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,540.40 : 159,810.60 = 59,787.20 : x
  2. Step 2: Convert to fraction form
    106,540.40/159,810.60 = 59,787.20/x
  3. Step 3: Cross multiply
    106,540.40x = 159,810.60 × 59,787.20
  4. Step 4: Simplify right side
    106,540.40x = 9,554,628,304.32
  5. Step 5: Solve for x
    x = 9,554,628,304.32/106,540.40
  6. Step 6: Final answer
    x = 89,680.80

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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.