Home / 188,345.30-259,934.80-107,784.32

Finding the Fourth Proportional to 188,345.30, 259,934.80 and 107,784.32

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Solution

The fourth proportional to 188,345.30, 259,934.80 and 107,784.32 is: 148,752.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,345.30 : 259,934.80 = 107,784.32 : x
  2. Step 2: Convert to fraction form
    188,345.30/259,934.80 = 107,784.32/x
  3. Step 3: Cross multiply
    188,345.30x = 259,934.80 × 107,784.32
  4. Step 4: Simplify right side
    188,345.30x = 28,016,895,662.34
  5. Step 5: Solve for x
    x = 28,016,895,662.34/188,345.30
  6. Step 6: Final answer
    x = 148,752.83

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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.