Home / 215,583.12-323,359.62-80,621.52

Finding the Fourth Proportional to 215,583.12, 323,359.62 and 80,621.52

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Solution

The fourth proportional to 215,583.12, 323,359.62 and 80,621.52 is: 120,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,583.12 : 323,359.62 = 80,621.52 : x
  2. Step 2: Convert to fraction form
    215,583.12/323,359.62 = 80,621.52/x
  3. Step 3: Cross multiply
    215,583.12x = 323,359.62 × 80,621.52
  4. Step 4: Simplify right side
    215,583.12x = 26,069,744,071.02
  5. Step 5: Solve for x
    x = 26,069,744,071.02/215,583.12
  6. Step 6: Final answer
    x = 120,926.65

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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.