Home / 185,000.30-255,300.42-100,117.37

Finding the Fourth Proportional to 185,000.30, 255,300.42 and 100,117.37

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Solution

The fourth proportional to 185,000.30, 255,300.42 and 100,117.37 is: 138,161.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,000.30 : 255,300.42 = 100,117.37 : x
  2. Step 2: Convert to fraction form
    185,000.30/255,300.42 = 100,117.37/x
  3. Step 3: Cross multiply
    185,000.30x = 255,300.42 × 100,117.37
  4. Step 4: Simplify right side
    185,000.30x = 25,560,006,610.30
  5. Step 5: Solve for x
    x = 25,560,006,610.30/185,000.30
  6. Step 6: Final answer
    x = 138,161.97

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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.