Home / 161,791.32-223,279.62-90,171.85

Finding the Fourth Proportional to 161,791.32, 223,279.62 and 90,171.85

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Solution

The fourth proportional to 161,791.32, 223,279.62 and 90,171.85 is: 124,441.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,791.32 : 223,279.62 = 90,171.85 : x
  2. Step 2: Convert to fraction form
    161,791.32/223,279.62 = 90,171.85/x
  3. Step 3: Cross multiply
    161,791.32x = 223,279.62 × 90,171.85
  4. Step 4: Simplify right side
    161,791.32x = 20,133,535,925.00
  5. Step 5: Solve for x
    x = 20,133,535,925.00/161,791.32
  6. Step 6: Final answer
    x = 124,441.39

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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.