Home / 200,195.42-300,084-66,966.12

Finding the Fourth Proportional to 200,195.42, 300,084 and 66,966.12

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Solution

The fourth proportional to 200,195.42, 300,084 and 66,966.12 is: 100,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,195.42 : 300,084 = 66,966.12 : x
  2. Step 2: Convert to fraction form
    200,195.42/300,084 = 66,966.12/x
  3. Step 3: Cross multiply
    200,195.42x = 300,084 × 66,966.12
  4. Step 4: Simplify right side
    200,195.42x = 20,095,461,154.08
  5. Step 5: Solve for x
    x = 20,095,461,154.08/200,195.42
  6. Step 6: Final answer
    x = 100,379.23

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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.