Home / 126,122.71-189,184.07-119,816.05

Finding the Fourth Proportional to 126,122.71, 189,184.07 and 119,816.05

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Solution

The fourth proportional to 126,122.71, 189,184.07 and 119,816.05 is: 179,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,122.71 : 189,184.07 = 119,816.05 : x
  2. Step 2: Convert to fraction form
    126,122.71/189,184.07 = 119,816.05/x
  3. Step 3: Cross multiply
    126,122.71x = 189,184.07 × 119,816.05
  4. Step 4: Simplify right side
    126,122.71x = 22,667,287,990.32
  5. Step 5: Solve for x
    x = 22,667,287,990.32/126,122.71
  6. Step 6: Final answer
    x = 179,724.08

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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.