Home / 115,113.42-172,620.72-40,211.10

Finding the Fourth Proportional to 115,113.42, 172,620.72 and 40,211.10

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Solution

The fourth proportional to 115,113.42, 172,620.72 and 40,211.10 is: 60,299.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,113.42 : 172,620.72 = 40,211.10 : x
  2. Step 2: Convert to fraction form
    115,113.42/172,620.72 = 40,211.10/x
  3. Step 3: Cross multiply
    115,113.42x = 172,620.72 × 40,211.10
  4. Step 4: Simplify right side
    115,113.42x = 6,941,269,033.99
  5. Step 5: Solve for x
    x = 6,941,269,033.99/115,113.42
  6. Step 6: Final answer
    x = 60,299.39

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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.