Home / 126,304.88-189,356.67-72,936.26

Finding the Fourth Proportional to 126,304.88, 189,356.67 and 72,936.26

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Solution

The fourth proportional to 126,304.88, 189,356.67 and 72,936.26 is: 109,346.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,304.88 : 189,356.67 = 72,936.26 : x
  2. Step 2: Convert to fraction form
    126,304.88/189,356.67 = 72,936.26/x
  3. Step 3: Cross multiply
    126,304.88x = 189,356.67 × 72,936.26
  4. Step 4: Simplify right side
    126,304.88x = 13,810,966,369.07
  5. Step 5: Solve for x
    x = 13,810,966,369.07/126,304.88
  6. Step 6: Final answer
    x = 109,346.27

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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.