Home / 200,732.20-301,098.30-121,870.60

Finding the Fourth Proportional to 200,732.20, 301,098.30 and 121,870.60

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Solution

The fourth proportional to 200,732.20, 301,098.30 and 121,870.60 is: 182,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,732.20 : 301,098.30 = 121,870.60 : x
  2. Step 2: Convert to fraction form
    200,732.20/301,098.30 = 121,870.60/x
  3. Step 3: Cross multiply
    200,732.20x = 301,098.30 × 121,870.60
  4. Step 4: Simplify right side
    200,732.20x = 36,695,030,479.98
  5. Step 5: Solve for x
    x = 36,695,030,479.98/200,732.20
  6. Step 6: Final answer
    x = 182,805.90

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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.