Home / 213,620.20-320,046.30-102,567.40

Finding the Fourth Proportional to 213,620.20, 320,046.30 and 102,567.40

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Solution

The fourth proportional to 213,620.20, 320,046.30 and 102,567.40 is: 153,666.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,620.20 : 320,046.30 = 102,567.40 : x
  2. Step 2: Convert to fraction form
    213,620.20/320,046.30 = 102,567.40/x
  3. Step 3: Cross multiply
    213,620.20x = 320,046.30 × 102,567.40
  4. Step 4: Simplify right side
    213,620.20x = 32,826,316,870.62
  5. Step 5: Solve for x
    x = 32,826,316,870.62/213,620.20
  6. Step 6: Final answer
    x = 153,666.73

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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.