Home / 107,401.14-161,089.09-28,521.45

Finding the Fourth Proportional to 107,401.14, 161,089.09 and 28,521.45

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Solution

The fourth proportional to 107,401.14, 161,089.09 and 28,521.45 is: 42,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,401.14 : 161,089.09 = 28,521.45 : x
  2. Step 2: Convert to fraction form
    107,401.14/161,089.09 = 28,521.45/x
  3. Step 3: Cross multiply
    107,401.14x = 161,089.09 × 28,521.45
  4. Step 4: Simplify right side
    107,401.14x = 4,594,494,354.68
  5. Step 5: Solve for x
    x = 4,594,494,354.68/107,401.14
  6. Step 6: Final answer
    x = 42,778.82

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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.