Home / 162,198.25-243,349.52-77,964.53

Finding the Fourth Proportional to 162,198.25, 243,349.52 and 77,964.53

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Solution

The fourth proportional to 162,198.25, 243,349.52 and 77,964.53 is: 116,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,198.25 : 243,349.52 = 77,964.53 : x
  2. Step 2: Convert to fraction form
    162,198.25/243,349.52 = 77,964.53/x
  3. Step 3: Cross multiply
    162,198.25x = 243,349.52 × 77,964.53
  4. Step 4: Simplify right side
    162,198.25x = 18,972,629,345.96
  5. Step 5: Solve for x
    x = 18,972,629,345.96/162,198.25
  6. Step 6: Final answer
    x = 116,971.85

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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.