Home / 129,730.87-194,537.83-54,812.45

Finding the Fourth Proportional to 129,730.87, 194,537.83 and 54,812.45

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Solution

The fourth proportional to 129,730.87, 194,537.83 and 54,812.45 is: 82,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,730.87 : 194,537.83 = 54,812.45 : x
  2. Step 2: Convert to fraction form
    129,730.87/194,537.83 = 54,812.45/x
  3. Step 3: Cross multiply
    129,730.87x = 194,537.83 × 54,812.45
  4. Step 4: Simplify right side
    129,730.87x = 10,663,094,283.64
  5. Step 5: Solve for x
    x = 10,663,094,283.64/129,730.87
  6. Step 6: Final answer
    x = 82,193.97

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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.