Home / 131,727.08-181,784.82-75,141.80

Finding the Fourth Proportional to 131,727.08, 181,784.82 and 75,141.80

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Solution

The fourth proportional to 131,727.08, 181,784.82 and 75,141.80 is: 103,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,727.08 : 181,784.82 = 75,141.80 : x
  2. Step 2: Convert to fraction form
    131,727.08/181,784.82 = 75,141.80/x
  3. Step 3: Cross multiply
    131,727.08x = 181,784.82 × 75,141.80
  4. Step 4: Simplify right side
    131,727.08x = 13,659,638,587.48
  5. Step 5: Solve for x
    x = 13,659,638,587.48/131,727.08
  6. Step 6: Final answer
    x = 103,696.51

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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.