Home / 100,184.70-138,255.09-54,244.83

Finding the Fourth Proportional to 100,184.70, 138,255.09 and 54,244.83

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Solution

The fourth proportional to 100,184.70, 138,255.09 and 54,244.83 is: 74,857.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,184.70 : 138,255.09 = 54,244.83 : x
  2. Step 2: Convert to fraction form
    100,184.70/138,255.09 = 54,244.83/x
  3. Step 3: Cross multiply
    100,184.70x = 138,255.09 × 54,244.83
  4. Step 4: Simplify right side
    100,184.70x = 7,499,623,853.68
  5. Step 5: Solve for x
    x = 7,499,623,853.68/100,184.70
  6. Step 6: Final answer
    x = 74,857.98

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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.