Home / 129,770.98-179,080.41-73,187.62

Finding the Fourth Proportional to 129,770.98, 179,080.41 and 73,187.62

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Solution

The fourth proportional to 129,770.98, 179,080.41 and 73,187.62 is: 100,996.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,770.98 : 179,080.41 = 73,187.62 : x
  2. Step 2: Convert to fraction form
    129,770.98/179,080.41 = 73,187.62/x
  3. Step 3: Cross multiply
    129,770.98x = 179,080.41 × 73,187.62
  4. Step 4: Simplify right side
    129,770.98x = 13,106,468,996.52
  5. Step 5: Solve for x
    x = 13,106,468,996.52/129,770.98
  6. Step 6: Final answer
    x = 100,996.92

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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.