Home / 161,821.74-223,310.81-90,197.49

Finding the Fourth Proportional to 161,821.74, 223,310.81 and 90,197.49

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Solution

The fourth proportional to 161,821.74, 223,310.81 and 90,197.49 is: 124,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,821.74 : 223,310.81 = 90,197.49 : x
  2. Step 2: Convert to fraction form
    161,821.74/223,310.81 = 90,197.49/x
  3. Step 3: Cross multiply
    161,821.74x = 223,310.81 × 90,197.49
  4. Step 4: Simplify right side
    161,821.74x = 20,142,074,777.36
  5. Step 5: Solve for x
    x = 20,142,074,777.36/161,821.74
  6. Step 6: Final answer
    x = 124,470.76

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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.