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Finding the Fourth Proportional to 149,379.96, 224,119.32 and 54,639.12

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Solution

The fourth proportional to 149,379.96, 224,119.32 and 54,639.12 is: 81,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,379.96 : 224,119.32 = 54,639.12 : x
  2. Step 2: Convert to fraction form
    149,379.96/224,119.32 = 54,639.12/x
  3. Step 3: Cross multiply
    149,379.96x = 224,119.32 × 54,639.12
  4. Step 4: Simplify right side
    149,379.96x = 12,245,682,419.80
  5. Step 5: Solve for x
    x = 12,245,682,419.80/149,379.96
  6. Step 6: Final answer
    x = 81,976.74

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1.5x scale

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.