Home / 129,808.80-194,700.24-36,315.36

Finding the Fourth Proportional to 129,808.80, 194,700.24 and 36,315.36

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Solution

The fourth proportional to 129,808.80, 194,700.24 and 36,315.36 is: 54,469.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,808.80 : 194,700.24 = 36,315.36 : x
  2. Step 2: Convert to fraction form
    129,808.80/194,700.24 = 36,315.36/x
  3. Step 3: Cross multiply
    129,808.80x = 194,700.24 × 36,315.36
  4. Step 4: Simplify right side
    129,808.80x = 7,070,609,307.69
  5. Step 5: Solve for x
    x = 7,070,609,307.69/129,808.80
  6. Step 6: Final answer
    x = 54,469.41

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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.