Home / 185,606.36-256,136.77-100,723.42

Finding the Fourth Proportional to 185,606.36, 256,136.77 and 100,723.42

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Solution

The fourth proportional to 185,606.36, 256,136.77 and 100,723.42 is: 138,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,606.36 : 256,136.77 = 100,723.42 : x
  2. Step 2: Convert to fraction form
    185,606.36/256,136.77 = 100,723.42/x
  3. Step 3: Cross multiply
    185,606.36x = 256,136.77 × 100,723.42
  4. Step 4: Simplify right side
    185,606.36x = 25,798,971,976.59
  5. Step 5: Solve for x
    x = 25,798,971,976.59/185,606.36
  6. Step 6: Final answer
    x = 138,998.32

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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.