Home / 185,473.12-255,953.64-100,591.60

Finding the Fourth Proportional to 185,473.12, 255,953.64 and 100,591.60

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Solution

The fourth proportional to 185,473.12, 255,953.64 and 100,591.60 is: 138,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,473.12 : 255,953.64 = 100,591.60 : x
  2. Step 2: Convert to fraction form
    185,473.12/255,953.64 = 100,591.60/x
  3. Step 3: Cross multiply
    185,473.12x = 255,953.64 × 100,591.60
  4. Step 4: Simplify right side
    185,473.12x = 25,746,786,173.42
  5. Step 5: Solve for x
    x = 25,746,786,173.42/185,473.12
  6. Step 6: Final answer
    x = 138,816.81

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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.