Home / 107,617.80-161,369.10-45,217.80

Finding the Fourth Proportional to 107,617.80, 161,369.10 and 45,217.80

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Solution

The fourth proportional to 107,617.80, 161,369.10 and 45,217.80 is: 67,802.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,617.80 : 161,369.10 = 45,217.80 : x
  2. Step 2: Convert to fraction form
    107,617.80/161,369.10 = 45,217.80/x
  3. Step 3: Cross multiply
    107,617.80x = 161,369.10 × 45,217.80
  4. Step 4: Simplify right side
    107,617.80x = 7,296,755,689.98
  5. Step 5: Solve for x
    x = 7,296,755,689.98/107,617.80
  6. Step 6: Final answer
    x = 67,802.50

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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.