Home / 213,065.02-319,514.50-79,872.63

Finding the Fourth Proportional to 213,065.02, 319,514.50 and 79,872.63

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Solution

The fourth proportional to 213,065.02, 319,514.50 and 79,872.63 is: 119,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,065.02 : 319,514.50 = 79,872.63 : x
  2. Step 2: Convert to fraction form
    213,065.02/319,514.50 = 79,872.63/x
  3. Step 3: Cross multiply
    213,065.02x = 319,514.50 × 79,872.63
  4. Step 4: Simplify right side
    213,065.02x = 25,520,463,438.14
  5. Step 5: Solve for x
    x = 25,520,463,438.14/213,065.02
  6. Step 6: Final answer
    x = 119,777.82

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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.