Home / 112,401.60-168,578.10-49,221.60

Finding the Fourth Proportional to 112,401.60, 168,578.10 and 49,221.60

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Solution

The fourth proportional to 112,401.60, 168,578.10 and 49,221.60 is: 73,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,401.60 : 168,578.10 = 49,221.60 : x
  2. Step 2: Convert to fraction form
    112,401.60/168,578.10 = 49,221.60/x
  3. Step 3: Cross multiply
    112,401.60x = 168,578.10 × 49,221.60
  4. Step 4: Simplify right side
    112,401.60x = 8,297,683,806.96
  5. Step 5: Solve for x
    x = 8,297,683,806.96/112,401.60
  6. Step 6: Final answer
    x = 73,821.76

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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.