Home / 129,569.96-194,411.41-45,390.50

Finding the Fourth Proportional to 129,569.96, 194,411.41 and 45,390.50

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Solution

The fourth proportional to 129,569.96, 194,411.41 and 45,390.50 is: 68,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,569.96 : 194,411.41 = 45,390.50 : x
  2. Step 2: Convert to fraction form
    129,569.96/194,411.41 = 45,390.50/x
  3. Step 3: Cross multiply
    129,569.96x = 194,411.41 × 45,390.50
  4. Step 4: Simplify right side
    129,569.96x = 8,824,431,842.68
  5. Step 5: Solve for x
    x = 8,824,431,842.68/129,569.96
  6. Step 6: Final answer
    x = 68,105.54

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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.