Home / 185,869.80-256,500.66-100,986.96

Finding the Fourth Proportional to 185,869.80, 256,500.66 and 100,986.96

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Solution

The fourth proportional to 185,869.80, 256,500.66 and 100,986.96 is: 139,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,869.80 : 256,500.66 = 100,986.96 : x
  2. Step 2: Convert to fraction form
    185,869.80/256,500.66 = 100,986.96/x
  3. Step 3: Cross multiply
    185,869.80x = 256,500.66 × 100,986.96
  4. Step 4: Simplify right side
    185,869.80x = 25,903,221,891.39
  5. Step 5: Solve for x
    x = 25,903,221,891.39/185,869.80
  6. Step 6: Final answer
    x = 139,362.19

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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.