Home / 105,816.80-158,777.09-49,661.47

Finding the Fourth Proportional to 105,816.80, 158,777.09 and 49,661.47

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Solution

The fourth proportional to 105,816.80, 158,777.09 and 49,661.47 is: 74,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,816.80 : 158,777.09 = 49,661.47 : x
  2. Step 2: Convert to fraction form
    105,816.80/158,777.09 = 49,661.47/x
  3. Step 3: Cross multiply
    105,816.80x = 158,777.09 × 49,661.47
  4. Step 4: Simplify right side
    105,816.80x = 7,885,103,418.93
  5. Step 5: Solve for x
    x = 7,885,103,418.93/105,816.80
  6. Step 6: Final answer
    x = 74,516.56

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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.