Home / 129,994.01-179,380.60-74,805.12

Finding the Fourth Proportional to 129,994.01, 179,380.60 and 74,805.12

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Solution

The fourth proportional to 129,994.01, 179,380.60 and 74,805.12 is: 103,224.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,994.01 : 179,380.60 = 74,805.12 : x
  2. Step 2: Convert to fraction form
    129,994.01/179,380.60 = 74,805.12/x
  3. Step 3: Cross multiply
    129,994.01x = 179,380.60 × 74,805.12
  4. Step 4: Simplify right side
    129,994.01x = 13,418,587,332.05
  5. Step 5: Solve for x
    x = 13,418,587,332.05/129,994.01
  6. Step 6: Final answer
    x = 103,224.66

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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.