Home / 105,778.20-158,626.14-53,151

Finding the Fourth Proportional to 105,778.20, 158,626.14 and 53,151

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Solution

The fourth proportional to 105,778.20, 158,626.14 and 53,151 is: 79,705.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,778.20 : 158,626.14 = 53,151 : x
  2. Step 2: Convert to fraction form
    105,778.20/158,626.14 = 53,151/x
  3. Step 3: Cross multiply
    105,778.20x = 158,626.14 × 53,151
  4. Step 4: Simplify right side
    105,778.20x = 8,431,137,967.14
  5. Step 5: Solve for x
    x = 8,431,137,967.14/105,778.20
  6. Step 6: Final answer
    x = 79,705.82

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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.