Home / 129,736.77-194,604-40,990.26

Finding the Fourth Proportional to 129,736.77, 194,604 and 40,990.26

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Solution

The fourth proportional to 129,736.77, 194,604 and 40,990.26 is: 61,485.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,736.77 : 194,604 = 40,990.26 : x
  2. Step 2: Convert to fraction form
    129,736.77/194,604 = 40,990.26/x
  3. Step 3: Cross multiply
    129,736.77x = 194,604 × 40,990.26
  4. Step 4: Simplify right side
    129,736.77x = 7,976,868,557.04
  5. Step 5: Solve for x
    x = 7,976,868,557.04/129,736.77
  6. Step 6: Final answer
    x = 61,485.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.