Home / 129,878.73-194,829.23-45,631.64

Finding the Fourth Proportional to 129,878.73, 194,829.23 and 45,631.64

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Solution

The fourth proportional to 129,878.73, 194,829.23 and 45,631.64 is: 68,451.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,878.73 : 194,829.23 = 45,631.64 : x
  2. Step 2: Convert to fraction form
    129,878.73/194,829.23 = 45,631.64/x
  3. Step 3: Cross multiply
    129,878.73x = 194,829.23 × 45,631.64
  4. Step 4: Simplify right side
    129,878.73x = 8,890,376,082.53
  5. Step 5: Solve for x
    x = 8,890,376,082.53/129,878.73
  6. Step 6: Final answer
    x = 68,451.36

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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.