Home / 129,350.40-193,792.10-54,336.30

Finding the Fourth Proportional to 129,350.40, 193,792.10 and 54,336.30

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Solution

The fourth proportional to 129,350.40, 193,792.10 and 54,336.30 is: 81,406.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,350.40 : 193,792.10 = 54,336.30 : x
  2. Step 2: Convert to fraction form
    129,350.40/193,792.10 = 54,336.30/x
  3. Step 3: Cross multiply
    129,350.40x = 193,792.10 × 54,336.30
  4. Step 4: Simplify right side
    129,350.40x = 10,529,945,683.23
  5. Step 5: Solve for x
    x = 10,529,945,683.23/129,350.40
  6. Step 6: Final answer
    x = 81,406.36

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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.