Home / 100,306.42-150,442.35-30,166.90

Finding the Fourth Proportional to 100,306.42, 150,442.35 and 30,166.90

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Solution

The fourth proportional to 100,306.42, 150,442.35 and 30,166.90 is: 45,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,306.42 : 150,442.35 = 30,166.90 : x
  2. Step 2: Convert to fraction form
    100,306.42/150,442.35 = 30,166.90/x
  3. Step 3: Cross multiply
    100,306.42x = 150,442.35 × 30,166.90
  4. Step 4: Simplify right side
    100,306.42x = 4,538,379,328.22
  5. Step 5: Solve for x
    x = 4,538,379,328.22/100,306.42
  6. Step 6: Final answer
    x = 45,245.15

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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.