Home / 185,073.42-255,400.18-100,189.88

Finding the Fourth Proportional to 185,073.42, 255,400.18 and 100,189.88

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Solution

The fourth proportional to 185,073.42, 255,400.18 and 100,189.88 is: 138,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,073.42 : 255,400.18 = 100,189.88 : x
  2. Step 2: Convert to fraction form
    185,073.42/255,400.18 = 100,189.88/x
  3. Step 3: Cross multiply
    185,073.42x = 255,400.18 × 100,189.88
  4. Step 4: Simplify right side
    185,073.42x = 25,588,513,386.18
  5. Step 5: Solve for x
    x = 25,588,513,386.18/185,073.42
  6. Step 6: Final answer
    x = 138,261.42

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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.