Home / 129,996.01-179,383.36-74,807.12

Finding the Fourth Proportional to 129,996.01, 179,383.36 and 74,807.12

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Solution

The fourth proportional to 129,996.01, 179,383.36 and 74,807.12 is: 103,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,996.01 : 179,383.36 = 74,807.12 : x
  2. Step 2: Convert to fraction form
    129,996.01/179,383.36 = 74,807.12/x
  3. Step 3: Cross multiply
    129,996.01x = 179,383.36 × 74,807.12
  4. Step 4: Simplify right side
    129,996.01x = 13,419,152,537.52
  5. Step 5: Solve for x
    x = 13,419,152,537.52/129,996.01
  6. Step 6: Final answer
    x = 103,227.42

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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.