Home / 154,880.22-213,809.79-103,874.33

Finding the Fourth Proportional to 154,880.22, 213,809.79 and 103,874.33

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Solution

The fourth proportional to 154,880.22, 213,809.79 and 103,874.33 is: 143,396.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,880.22 : 213,809.79 = 103,874.33 : x
  2. Step 2: Convert to fraction form
    154,880.22/213,809.79 = 103,874.33/x
  3. Step 3: Cross multiply
    154,880.22x = 213,809.79 × 103,874.33
  4. Step 4: Simplify right side
    154,880.22x = 22,209,347,614.64
  5. Step 5: Solve for x
    x = 22,209,347,614.64/154,880.22
  6. Step 6: Final answer
    x = 143,396.93

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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.