Home / 185,037.66-255,351.69-100,155.06

Finding the Fourth Proportional to 185,037.66, 255,351.69 and 100,155.06

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Solution

The fourth proportional to 185,037.66, 255,351.69 and 100,155.06 is: 138,213.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,037.66 : 255,351.69 = 100,155.06 : x
  2. Step 2: Convert to fraction form
    185,037.66/255,351.69 = 100,155.06/x
  3. Step 3: Cross multiply
    185,037.66x = 255,351.69 × 100,155.06
  4. Step 4: Simplify right side
    185,037.66x = 25,574,763,833.05
  5. Step 5: Solve for x
    x = 25,574,763,833.05/185,037.66
  6. Step 6: Final answer
    x = 138,213.83

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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.