Home / 192,584.74-289,157.52-136,721.47

Finding the Fourth Proportional to 192,584.74, 289,157.52 and 136,721.47

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Solution

The fourth proportional to 192,584.74, 289,157.52 and 136,721.47 is: 205,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,584.74 : 289,157.52 = 136,721.47 : x
  2. Step 2: Convert to fraction form
    192,584.74/289,157.52 = 136,721.47/x
  3. Step 3: Cross multiply
    192,584.74x = 289,157.52 × 136,721.47
  4. Step 4: Simplify right side
    192,584.74x = 39,534,041,143.41
  5. Step 5: Solve for x
    x = 39,534,041,143.41/192,584.74
  6. Step 6: Final answer
    x = 205,281.28

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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.