Home / 161,743.49-223,203.04-90,121.97

Finding the Fourth Proportional to 161,743.49, 223,203.04 and 90,121.97

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Solution

The fourth proportional to 161,743.49, 223,203.04 and 90,121.97 is: 124,366.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,743.49 : 223,203.04 = 90,121.97 : x
  2. Step 2: Convert to fraction form
    161,743.49/223,203.04 = 90,121.97/x
  3. Step 3: Cross multiply
    161,743.49x = 223,203.04 × 90,121.97
  4. Step 4: Simplify right side
    161,743.49x = 20,115,497,674.79
  5. Step 5: Solve for x
    x = 20,115,497,674.79/161,743.49
  6. Step 6: Final answer
    x = 124,366.66

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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.