Home / 185,605.47-256,136.22-100,722.51

Finding the Fourth Proportional to 185,605.47, 256,136.22 and 100,722.51

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Solution

The fourth proportional to 185,605.47, 256,136.22 and 100,722.51 is: 138,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,605.47 : 256,136.22 = 100,722.51 : x
  2. Step 2: Convert to fraction form
    185,605.47/256,136.22 = 100,722.51/x
  3. Step 3: Cross multiply
    185,605.47x = 256,136.22 × 100,722.51
  4. Step 4: Simplify right side
    185,605.47x = 25,798,682,980.31
  5. Step 5: Solve for x
    x = 25,798,682,980.31/185,605.47
  6. Step 6: Final answer
    x = 138,997.43

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1.5x scale

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.