Home / 115,133.42-172,650.72-40,231.10

Finding the Fourth Proportional to 115,133.42, 172,650.72 and 40,231.10

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Solution

The fourth proportional to 115,133.42, 172,650.72 and 40,231.10 is: 60,329.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,133.42 : 172,650.72 = 40,231.10 : x
  2. Step 2: Convert to fraction form
    115,133.42/172,650.72 = 40,231.10/x
  3. Step 3: Cross multiply
    115,133.42x = 172,650.72 × 40,231.10
  4. Step 4: Simplify right side
    115,133.42x = 6,945,928,381.39
  5. Step 5: Solve for x
    x = 6,945,928,381.39/115,133.42
  6. Step 6: Final answer
    x = 60,329.38

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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.