Home / 131,725.06-181,784.99-80,727.94

Finding the Fourth Proportional to 131,725.06, 181,784.99 and 80,727.94

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Solution

The fourth proportional to 131,725.06, 181,784.99 and 80,727.94 is: 111,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,725.06 : 181,784.99 = 80,727.94 : x
  2. Step 2: Convert to fraction form
    131,725.06/181,784.99 = 80,727.94/x
  3. Step 3: Cross multiply
    131,725.06x = 181,784.99 × 80,727.94
  4. Step 4: Simplify right side
    131,725.06x = 14,675,127,765.62
  5. Step 5: Solve for x
    x = 14,675,127,765.62/131,725.06
  6. Step 6: Final answer
    x = 111,407.26

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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.