Home / 147,743.13-221,696.51-91,613.37

Finding the Fourth Proportional to 147,743.13, 221,696.51 and 91,613.37

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Solution

The fourth proportional to 147,743.13, 221,696.51 and 91,613.37 is: 137,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,743.13 : 221,696.51 = 91,613.37 : x
  2. Step 2: Convert to fraction form
    147,743.13/221,696.51 = 91,613.37/x
  3. Step 3: Cross multiply
    147,743.13x = 221,696.51 × 91,613.37
  4. Step 4: Simplify right side
    147,743.13x = 20,310,363,940.27
  5. Step 5: Solve for x
    x = 20,310,363,940.27/147,743.13
  6. Step 6: Final answer
    x = 137,470.78

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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.