Home / 74,270.20-111,405.30-73,614.10

Finding the Fourth Proportional to 74,270.20, 111,405.30 and 73,614.10

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Solution

The fourth proportional to 74,270.20, 111,405.30 and 73,614.10 is: 110,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,270.20 : 111,405.30 = 73,614.10 : x
  2. Step 2: Convert to fraction form
    74,270.20/111,405.30 = 73,614.10/x
  3. Step 3: Cross multiply
    74,270.20x = 111,405.30 × 73,614.10
  4. Step 4: Simplify right side
    74,270.20x = 8,201,000,894.73
  5. Step 5: Solve for x
    x = 8,201,000,894.73/74,270.20
  6. Step 6: Final answer
    x = 110,421.15

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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.