Home / 100,416.30-150,589-40,426.89

Finding the Fourth Proportional to 100,416.30, 150,589 and 40,426.89

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Solution

The fourth proportional to 100,416.30, 150,589 and 40,426.89 is: 60,626.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,416.30 : 150,589 = 40,426.89 : x
  2. Step 2: Convert to fraction form
    100,416.30/150,589 = 40,426.89/x
  3. Step 3: Cross multiply
    100,416.30x = 150,589 × 40,426.89
  4. Step 4: Simplify right side
    100,416.30x = 6,087,844,938.21
  5. Step 5: Solve for x
    x = 6,087,844,938.21/100,416.30
  6. Step 6: Final answer
    x = 60,626.06

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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.