Home / 105,731.88-158,622.18-61,395.72

Finding the Fourth Proportional to 105,731.88, 158,622.18 and 61,395.72

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Solution

The fourth proportional to 105,731.88, 158,622.18 and 61,395.72 is: 92,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,731.88 : 158,622.18 = 61,395.72 : x
  2. Step 2: Convert to fraction form
    105,731.88/158,622.18 = 61,395.72/x
  3. Step 3: Cross multiply
    105,731.88x = 158,622.18 × 61,395.72
  4. Step 4: Simplify right side
    105,731.88x = 9,738,722,949.07
  5. Step 5: Solve for x
    x = 9,738,722,949.07/105,731.88
  6. Step 6: Final answer
    x = 92,107.73

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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.