Home / 105,786.91-145,988.22-58,040.25

Finding the Fourth Proportional to 105,786.91, 145,988.22 and 58,040.25

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Solution

The fourth proportional to 105,786.91, 145,988.22 and 58,040.25 is: 80,096.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,786.91 : 145,988.22 = 58,040.25 : x
  2. Step 2: Convert to fraction form
    105,786.91/145,988.22 = 58,040.25/x
  3. Step 3: Cross multiply
    105,786.91x = 145,988.22 × 58,040.25
  4. Step 4: Simplify right side
    105,786.91x = 8,473,192,456.05
  5. Step 5: Solve for x
    x = 8,473,192,456.05/105,786.91
  6. Step 6: Final answer
    x = 80,096.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.