Home / 185,174.80-255,538.20-100,291.12

Finding the Fourth Proportional to 185,174.80, 255,538.20 and 100,291.12

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Solution

The fourth proportional to 185,174.80, 255,538.20 and 100,291.12 is: 138,400.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,174.80 : 255,538.20 = 100,291.12 : x
  2. Step 2: Convert to fraction form
    185,174.80/255,538.20 = 100,291.12/x
  3. Step 3: Cross multiply
    185,174.80x = 255,538.20 × 100,291.12
  4. Step 4: Simplify right side
    185,174.80x = 25,628,212,280.78
  5. Step 5: Solve for x
    x = 25,628,212,280.78/185,174.80
  6. Step 6: Final answer
    x = 138,400.11

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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.