Home / 213,281.12-320,118.52-108,173.92

Finding the Fourth Proportional to 213,281.12, 320,118.52 and 108,173.92

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Solution

The fourth proportional to 213,281.12, 320,118.52 and 108,173.92 is: 162,360.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,281.12 : 320,118.52 = 108,173.92 : x
  2. Step 2: Convert to fraction form
    213,281.12/320,118.52 = 108,173.92/x
  3. Step 3: Cross multiply
    213,281.12x = 320,118.52 × 108,173.92
  4. Step 4: Simplify right side
    213,281.12x = 34,628,475,173.00
  5. Step 5: Solve for x
    x = 34,628,475,173.00/213,281.12
  6. Step 6: Final answer
    x = 162,360.72

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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.