Home / 126,332.36-189,431.90-111,943.12

Finding the Fourth Proportional to 126,332.36, 189,431.90 and 111,943.12

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Solution

The fourth proportional to 126,332.36, 189,431.90 and 111,943.12 is: 167,855.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,332.36 : 189,431.90 = 111,943.12 : x
  2. Step 2: Convert to fraction form
    126,332.36/189,431.90 = 111,943.12/x
  3. Step 3: Cross multiply
    126,332.36x = 189,431.90 × 111,943.12
  4. Step 4: Simplify right side
    126,332.36x = 21,205,597,913.53
  5. Step 5: Solve for x
    x = 21,205,597,913.53/126,332.36
  6. Step 6: Final answer
    x = 167,855.63

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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.