Home / 185,131.42-255,480.91-100,248.48

Finding the Fourth Proportional to 185,131.42, 255,480.91 and 100,248.48

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Solution

The fourth proportional to 185,131.42, 255,480.91 and 100,248.48 is: 138,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,131.42 : 255,480.91 = 100,248.48 : x
  2. Step 2: Convert to fraction form
    185,131.42/255,480.91 = 100,248.48/x
  3. Step 3: Cross multiply
    185,131.42x = 255,480.91 × 100,248.48
  4. Step 4: Simplify right side
    185,131.42x = 25,611,572,645.90
  5. Step 5: Solve for x
    x = 25,611,572,645.90/185,131.42
  6. Step 6: Final answer
    x = 138,342.66

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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.