Home / 200,772.19-301,186.08-67,690.50

Finding the Fourth Proportional to 200,772.19, 301,186.08 and 67,690.50

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Solution

The fourth proportional to 200,772.19, 301,186.08 and 67,690.50 is: 101,545.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,772.19 : 301,186.08 = 67,690.50 : x
  2. Step 2: Convert to fraction form
    200,772.19/301,186.08 = 67,690.50/x
  3. Step 3: Cross multiply
    200,772.19x = 301,186.08 × 67,690.50
  4. Step 4: Simplify right side
    200,772.19x = 20,387,436,912.96
  5. Step 5: Solve for x
    x = 20,387,436,912.96/200,772.19
  6. Step 6: Final answer
    x = 101,545.13

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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.