Home / 126,835.80-174,867.42-109,121.08

Finding the Fourth Proportional to 126,835.80, 174,867.42 and 109,121.08

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Solution

The fourth proportional to 126,835.80, 174,867.42 and 109,121.08 is: 150,444.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,835.80 : 174,867.42 = 109,121.08 : x
  2. Step 2: Convert to fraction form
    126,835.80/174,867.42 = 109,121.08/x
  3. Step 3: Cross multiply
    126,835.80x = 174,867.42 × 109,121.08
  4. Step 4: Simplify right side
    126,835.80x = 19,081,721,727.21
  5. Step 5: Solve for x
    x = 19,081,721,727.21/126,835.80
  6. Step 6: Final answer
    x = 150,444.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.