Home / 204,701.40-307,052.10-71,567.78

Finding the Fourth Proportional to 204,701.40, 307,052.10 and 71,567.78

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Solution

The fourth proportional to 204,701.40, 307,052.10 and 71,567.78 is: 107,351.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,701.40 : 307,052.10 = 71,567.78 : x
  2. Step 2: Convert to fraction form
    204,701.40/307,052.10 = 71,567.78/x
  3. Step 3: Cross multiply
    204,701.40x = 307,052.10 × 71,567.78
  4. Step 4: Simplify right side
    204,701.40x = 21,975,035,606.08
  5. Step 5: Solve for x
    x = 21,975,035,606.08/204,701.40
  6. Step 6: Final answer
    x = 107,351.66

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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.