Home / 213,547.24-320,514.08-113,791.72

Finding the Fourth Proportional to 213,547.24, 320,514.08 and 113,791.72

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Solution

The fourth proportional to 213,547.24, 320,514.08 and 113,791.72 is: 170,790.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,547.24 : 320,514.08 = 113,791.72 : x
  2. Step 2: Convert to fraction form
    213,547.24/320,514.08 = 113,791.72/x
  3. Step 3: Cross multiply
    213,547.24x = 320,514.08 × 113,791.72
  4. Step 4: Simplify right side
    213,547.24x = 36,471,848,447.42
  5. Step 5: Solve for x
    x = 36,471,848,447.42/213,547.24
  6. Step 6: Final answer
    x = 170,790.54

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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.