Home / 129,915.46-194,937.78-72,953.96

Finding the Fourth Proportional to 129,915.46, 194,937.78 and 72,953.96

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Solution

The fourth proportional to 129,915.46, 194,937.78 and 72,953.96 is: 109,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,915.46 : 194,937.78 = 72,953.96 : x
  2. Step 2: Convert to fraction form
    129,915.46/194,937.78 = 72,953.96/x
  3. Step 3: Cross multiply
    129,915.46x = 194,937.78 × 72,953.96
  4. Step 4: Simplify right side
    129,915.46x = 14,221,483,004.61
  5. Step 5: Solve for x
    x = 14,221,483,004.61/129,915.46
  6. Step 6: Final answer
    x = 109,467.21

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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.