Home / 129,575.49-194,293.98-40,805.16

Finding the Fourth Proportional to 129,575.49, 194,293.98 and 40,805.16

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Solution

The fourth proportional to 129,575.49, 194,293.98 and 40,805.16 is: 61,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,575.49 : 194,293.98 = 40,805.16 : x
  2. Step 2: Convert to fraction form
    129,575.49/194,293.98 = 40,805.16/x
  3. Step 3: Cross multiply
    129,575.49x = 194,293.98 × 40,805.16
  4. Step 4: Simplify right side
    129,575.49x = 7,928,196,940.94
  5. Step 5: Solve for x
    x = 7,928,196,940.94/129,575.49
  6. Step 6: Final answer
    x = 61,185.93

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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.