Home / 129,981.60-194,963.49-36,487.35

Finding the Fourth Proportional to 129,981.60, 194,963.49 and 36,487.35

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Solution

The fourth proportional to 129,981.60, 194,963.49 and 36,487.35 is: 54,728.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981.60 : 194,963.49 = 36,487.35 : x
  2. Step 2: Convert to fraction form
    129,981.60/194,963.49 = 36,487.35/x
  3. Step 3: Cross multiply
    129,981.60x = 194,963.49 × 36,487.35
  4. Step 4: Simplify right side
    129,981.60x = 7,113,701,096.85
  5. Step 5: Solve for x
    x = 7,113,701,096.85/129,981.60
  6. Step 6: Final answer
    x = 54,728.52

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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.