Home / 185,015.10-255,321.06-100,132.14

Finding the Fourth Proportional to 185,015.10, 255,321.06 and 100,132.14

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Solution

The fourth proportional to 185,015.10, 255,321.06 and 100,132.14 is: 138,182.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,015.10 : 255,321.06 = 100,132.14 : x
  2. Step 2: Convert to fraction form
    185,015.10/255,321.06 = 100,132.14/x
  3. Step 3: Cross multiply
    185,015.10x = 255,321.06 × 100,132.14
  4. Step 4: Simplify right side
    185,015.10x = 25,565,844,124.87
  5. Step 5: Solve for x
    x = 25,565,844,124.87/185,015.10
  6. Step 6: Final answer
    x = 138,182.47

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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.