Home / 99,299.40-148,920.30-40,115.40

Finding the Fourth Proportional to 99,299.40, 148,920.30 and 40,115.40

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Solution

The fourth proportional to 99,299.40, 148,920.30 and 40,115.40 is: 60,161.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,299.40 : 148,920.30 = 40,115.40 : x
  2. Step 2: Convert to fraction form
    99,299.40/148,920.30 = 40,115.40/x
  3. Step 3: Cross multiply
    99,299.40x = 148,920.30 × 40,115.40
  4. Step 4: Simplify right side
    99,299.40x = 5,973,997,402.62
  5. Step 5: Solve for x
    x = 5,973,997,402.62/99,299.40
  6. Step 6: Final answer
    x = 60,161.47

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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.