Home / 105,393.96-158,153.20-38,880.79

Finding the Fourth Proportional to 105,393.96, 158,153.20 and 38,880.79

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Solution

The fourth proportional to 105,393.96, 158,153.20 and 38,880.79 is: 58,344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,393.96 : 158,153.20 = 38,880.79 : x
  2. Step 2: Convert to fraction form
    105,393.96/158,153.20 = 38,880.79/x
  3. Step 3: Cross multiply
    105,393.96x = 158,153.20 × 38,880.79
  4. Step 4: Simplify right side
    105,393.96x = 6,149,120,864.44
  5. Step 5: Solve for x
    x = 6,149,120,864.44/105,393.96
  6. Step 6: Final answer
    x = 58,344.15

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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.