Home / 99,864.20-149,723.40-40,669.40

Finding the Fourth Proportional to 99,864.20, 149,723.40 and 40,669.40

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Solution

The fourth proportional to 99,864.20, 149,723.40 and 40,669.40 is: 60,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,864.20 : 149,723.40 = 40,669.40 : x
  2. Step 2: Convert to fraction form
    99,864.20/149,723.40 = 40,669.40/x
  3. Step 3: Cross multiply
    99,864.20x = 149,723.40 × 40,669.40
  4. Step 4: Simplify right side
    99,864.20x = 6,089,160,843.96
  5. Step 5: Solve for x
    x = 6,089,160,843.96/99,864.20
  6. Step 6: Final answer
    x = 60,974.41

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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.