Home / 421,743.49-632,614.73-137,433.59

Finding the Fourth Proportional to 421,743.49, 632,614.73 and 137,433.59

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Solution

The fourth proportional to 421,743.49, 632,614.73 and 137,433.59 is: 206,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,743.49 : 632,614.73 = 137,433.59 : x
  2. Step 2: Convert to fraction form
    421,743.49/632,614.73 = 137,433.59/x
  3. Step 3: Cross multiply
    421,743.49x = 632,614.73 × 137,433.59
  4. Step 4: Simplify right side
    421,743.49x = 86,942,516,670.90
  5. Step 5: Solve for x
    x = 86,942,516,670.90/421,743.49
  6. Step 6: Final answer
    x = 206,150.23

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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.