Home / 213,429.83-320,144.61-63,775.11

Finding the Fourth Proportional to 213,429.83, 320,144.61 and 63,775.11

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Solution

The fourth proportional to 213,429.83, 320,144.61 and 63,775.11 is: 95,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,429.83 : 320,144.61 = 63,775.11 : x
  2. Step 2: Convert to fraction form
    213,429.83/320,144.61 = 63,775.11/x
  3. Step 3: Cross multiply
    213,429.83x = 320,144.61 × 63,775.11
  4. Step 4: Simplify right side
    213,429.83x = 20,417,257,718.66
  5. Step 5: Solve for x
    x = 20,417,257,718.66/213,429.83
  6. Step 6: Final answer
    x = 95,662.62

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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.