Home / 313,146.12-469,722.06-99,946.43

Finding the Fourth Proportional to 313,146.12, 469,722.06 and 99,946.43

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Solution

The fourth proportional to 313,146.12, 469,722.06 and 99,946.43 is: 149,920.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,146.12 : 469,722.06 = 99,946.43 : x
  2. Step 2: Convert to fraction form
    313,146.12/469,722.06 = 99,946.43/x
  3. Step 3: Cross multiply
    313,146.12x = 469,722.06 × 99,946.43
  4. Step 4: Simplify right side
    313,146.12x = 46,947,040,640.64
  5. Step 5: Solve for x
    x = 46,947,040,640.64/313,146.12
  6. Step 6: Final answer
    x = 149,920.56

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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.