Home / 213,813.83-320,781.31-107,068.93

Finding the Fourth Proportional to 213,813.83, 320,781.31 and 107,068.93

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Solution

The fourth proportional to 213,813.83, 320,781.31 and 107,068.93 is: 160,633.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,813.83 : 320,781.31 = 107,068.93 : x
  2. Step 2: Convert to fraction form
    213,813.83/320,781.31 = 107,068.93/x
  3. Step 3: Cross multiply
    213,813.83x = 320,781.31 × 107,068.93
  4. Step 4: Simplify right side
    213,813.83x = 34,345,710,556.07
  5. Step 5: Solve for x
    x = 34,345,710,556.07/213,813.83
  6. Step 6: Final answer
    x = 160,633.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.