Home / 129,941.11-194,928.06-45,681.47

Finding the Fourth Proportional to 129,941.11, 194,928.06 and 45,681.47

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Solution

The fourth proportional to 129,941.11, 194,928.06 and 45,681.47 is: 68,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,941.11 : 194,928.06 = 45,681.47 : x
  2. Step 2: Convert to fraction form
    129,941.11/194,928.06 = 45,681.47/x
  3. Step 3: Cross multiply
    129,941.11x = 194,928.06 × 45,681.47
  4. Step 4: Simplify right side
    129,941.11x = 8,904,599,350.41
  5. Step 5: Solve for x
    x = 8,904,599,350.41/129,941.11
  6. Step 6: Final answer
    x = 68,527.96

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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.