Home / 126,643.74-189,828.92-82,302.32

Finding the Fourth Proportional to 126,643.74, 189,828.92 and 82,302.32

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Solution

The fourth proportional to 126,643.74, 189,828.92 and 82,302.32 is: 123,364.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,643.74 : 189,828.92 = 82,302.32 : x
  2. Step 2: Convert to fraction form
    126,643.74/189,828.92 = 82,302.32/x
  3. Step 3: Cross multiply
    126,643.74x = 189,828.92 × 82,302.32
  4. Step 4: Simplify right side
    126,643.74x = 15,623,359,158.44
  5. Step 5: Solve for x
    x = 15,623,359,158.44/126,643.74
  6. Step 6: Final answer
    x = 123,364.64

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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.