Home / 185,072.42-255,398.80-100,188.88

Finding the Fourth Proportional to 185,072.42, 255,398.80 and 100,188.88

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Solution

The fourth proportional to 185,072.42, 255,398.80 and 100,188.88 is: 138,260.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,072.42 : 255,398.80 = 100,188.88 : x
  2. Step 2: Convert to fraction form
    185,072.42/255,398.80 = 100,188.88/x
  3. Step 3: Cross multiply
    185,072.42x = 255,398.80 × 100,188.88
  4. Step 4: Simplify right side
    185,072.42x = 25,588,119,725.34
  5. Step 5: Solve for x
    x = 25,588,119,725.34/185,072.42
  6. Step 6: Final answer
    x = 138,260.04

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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.