Home / 185,003.84-255,306.08-100,120.91

Finding the Fourth Proportional to 185,003.84, 255,306.08 and 100,120.91

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Solution

The fourth proportional to 185,003.84, 255,306.08 and 100,120.91 is: 138,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,003.84 : 255,306.08 = 100,120.91 : x
  2. Step 2: Convert to fraction form
    185,003.84/255,306.08 = 100,120.91/x
  3. Step 3: Cross multiply
    185,003.84x = 255,306.08 × 100,120.91
  4. Step 4: Simplify right side
    185,003.84x = 25,561,476,031.90
  5. Step 5: Solve for x
    x = 25,561,476,031.90/185,003.84
  6. Step 6: Final answer
    x = 138,167.27

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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.