Home / 154,796.88-213,421.92-100,252.65

Finding the Fourth Proportional to 154,796.88, 213,421.92 and 100,252.65

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Solution

The fourth proportional to 154,796.88, 213,421.92 and 100,252.65 is: 138,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,796.88 : 213,421.92 = 100,252.65 : x
  2. Step 2: Convert to fraction form
    154,796.88/213,421.92 = 100,252.65/x
  3. Step 3: Cross multiply
    154,796.88x = 213,421.92 × 100,252.65
  4. Step 4: Simplify right side
    154,796.88x = 21,396,113,048.09
  5. Step 5: Solve for x
    x = 21,396,113,048.09/154,796.88
  6. Step 6: Final answer
    x = 138,220.57

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1.5x scale

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.