Home / 460,042.47-690,138.62-135,863.37

Finding the Fourth Proportional to 460,042.47, 690,138.62 and 135,863.37

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Solution

The fourth proportional to 460,042.47, 690,138.62 and 135,863.37 is: 203,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,042.47 : 690,138.62 = 135,863.37 : x
  2. Step 2: Convert to fraction form
    460,042.47/690,138.62 = 135,863.37/x
  3. Step 3: Cross multiply
    460,042.47x = 690,138.62 × 135,863.37
  4. Step 4: Simplify right side
    460,042.47x = 93,764,558,001.03
  5. Step 5: Solve for x
    x = 93,764,558,001.03/460,042.47
  6. Step 6: Final answer
    x = 203,817.18

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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.