Home / 185,099.60-255,437.12-100,216.64

Finding the Fourth Proportional to 185,099.60, 255,437.12 and 100,216.64

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Solution

The fourth proportional to 185,099.60, 255,437.12 and 100,216.64 is: 138,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,099.60 : 255,437.12 = 100,216.64 : x
  2. Step 2: Convert to fraction form
    185,099.60/255,437.12 = 100,216.64/x
  3. Step 3: Cross multiply
    185,099.60x = 255,437.12 × 100,216.64
  4. Step 4: Simplify right side
    185,099.60x = 25,599,049,897.68
  5. Step 5: Solve for x
    x = 25,599,049,897.68/185,099.60
  6. Step 6: Final answer
    x = 138,298.79

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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.