Home / 154,759.40-213,501.87-106,929.71

Finding the Fourth Proportional to 154,759.40, 213,501.87 and 106,929.71

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Solution

The fourth proportional to 154,759.40, 213,501.87 and 106,929.71 is: 147,517.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,759.40 : 213,501.87 = 106,929.71 : x
  2. Step 2: Convert to fraction form
    154,759.40/213,501.87 = 106,929.71/x
  3. Step 3: Cross multiply
    154,759.40x = 213,501.87 × 106,929.71
  4. Step 4: Simplify right side
    154,759.40x = 22,829,691,976.05
  5. Step 5: Solve for x
    x = 22,829,691,976.05/154,759.40
  6. Step 6: Final answer
    x = 147,517.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.