Home / 218,651.32-301,739.88-123,159.52

Finding the Fourth Proportional to 218,651.32, 301,739.88 and 123,159.52

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Solution

The fourth proportional to 218,651.32, 301,739.88 and 123,159.52 is: 169,960.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,651.32 : 301,739.88 = 123,159.52 : x
  2. Step 2: Convert to fraction form
    218,651.32/301,739.88 = 123,159.52/x
  3. Step 3: Cross multiply
    218,651.32x = 301,739.88 × 123,159.52
  4. Step 4: Simplify right side
    218,651.32x = 37,162,138,785.66
  5. Step 5: Solve for x
    x = 37,162,138,785.66/218,651.32
  6. Step 6: Final answer
    x = 169,960.73

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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.