Home / 154,668.35-213,218.67-108,587.71

Finding the Fourth Proportional to 154,668.35, 213,218.67 and 108,587.71

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Solution

The fourth proportional to 154,668.35, 213,218.67 and 108,587.71 is: 149,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,668.35 : 213,218.67 = 108,587.71 : x
  2. Step 2: Convert to fraction form
    154,668.35/213,218.67 = 108,587.71/x
  3. Step 3: Cross multiply
    154,668.35x = 213,218.67 × 108,587.71
  4. Step 4: Simplify right side
    154,668.35x = 23,152,926,571.50
  5. Step 5: Solve for x
    x = 23,152,926,571.50/154,668.35
  6. Step 6: Final answer
    x = 149,694.01

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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.