Home / 206,139.42-308,854.04-161,143.31

Finding the Fourth Proportional to 206,139.42, 308,854.04 and 161,143.31

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Solution

The fourth proportional to 206,139.42, 308,854.04 and 161,143.31 is: 241,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,139.42 : 308,854.04 = 161,143.31 : x
  2. Step 2: Convert to fraction form
    206,139.42/308,854.04 = 161,143.31/x
  3. Step 3: Cross multiply
    206,139.42x = 308,854.04 × 161,143.31
  4. Step 4: Simplify right side
    206,139.42x = 49,769,759,962.49
  5. Step 5: Solve for x
    x = 49,769,759,962.49/206,139.42
  6. Step 6: Final answer
    x = 241,437.37

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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.