Home / 145,371.33-218,061.09-40,190.30

Finding the Fourth Proportional to 145,371.33, 218,061.09 and 40,190.30

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Solution

The fourth proportional to 145,371.33, 218,061.09 and 40,190.30 is: 60,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,371.33 : 218,061.09 = 40,190.30 : x
  2. Step 2: Convert to fraction form
    145,371.33/218,061.09 = 40,190.30/x
  3. Step 3: Cross multiply
    145,371.33x = 218,061.09 × 40,190.30
  4. Step 4: Simplify right side
    145,371.33x = 8,763,939,535.12
  5. Step 5: Solve for x
    x = 8,763,939,535.12/145,371.33
  6. Step 6: Final answer
    x = 60,286.57

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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.