Home / 161,743.37-223,202.84-90,121.86

Finding the Fourth Proportional to 161,743.37, 223,202.84 and 90,121.86

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Solution

The fourth proportional to 161,743.37, 223,202.84 and 90,121.86 is: 124,366.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,743.37 : 223,202.84 = 90,121.86 : x
  2. Step 2: Convert to fraction form
    161,743.37/223,202.84 = 90,121.86/x
  3. Step 3: Cross multiply
    161,743.37x = 223,202.84 × 90,121.86
  4. Step 4: Simplify right side
    161,743.37x = 20,115,454,647.47
  5. Step 5: Solve for x
    x = 20,115,454,647.47/161,743.37
  6. Step 6: Final answer
    x = 124,366.49

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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.