Home / 103,113.90-154,670.73-28,234.62

Finding the Fourth Proportional to 103,113.90, 154,670.73 and 28,234.62

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Solution

The fourth proportional to 103,113.90, 154,670.73 and 28,234.62 is: 42,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,113.90 : 154,670.73 = 28,234.62 : x
  2. Step 2: Convert to fraction form
    103,113.90/154,670.73 = 28,234.62/x
  3. Step 3: Cross multiply
    103,113.90x = 154,670.73 × 28,234.62
  4. Step 4: Simplify right side
    103,113.90x = 4,367,069,286.67
  5. Step 5: Solve for x
    x = 4,367,069,286.67/103,113.90
  6. Step 6: Final answer
    x = 42,351.90

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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.