Home / 109,112.91-163,651.14-30,235.11

Finding the Fourth Proportional to 109,112.91, 163,651.14 and 30,235.11

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Solution

The fourth proportional to 109,112.91, 163,651.14 and 30,235.11 is: 45,347.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,112.91 : 163,651.14 = 30,235.11 : x
  2. Step 2: Convert to fraction form
    109,112.91/163,651.14 = 30,235.11/x
  3. Step 3: Cross multiply
    109,112.91x = 163,651.14 × 30,235.11
  4. Step 4: Simplify right side
    109,112.91x = 4,948,010,219.53
  5. Step 5: Solve for x
    x = 4,948,010,219.53/109,112.91
  6. Step 6: Final answer
    x = 45,347.61

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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.