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Finding the Fourth Proportional to 128,151.84, 192,318.48 and 45,052.32

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Solution

The fourth proportional to 128,151.84, 192,318.48 and 45,052.32 is: 67,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,151.84 : 192,318.48 = 45,052.32 : x
  2. Step 2: Convert to fraction form
    128,151.84/192,318.48 = 45,052.32/x
  3. Step 3: Cross multiply
    128,151.84x = 192,318.48 × 45,052.32
  4. Step 4: Simplify right side
    128,151.84x = 8,664,393,702.87
  5. Step 5: Solve for x
    x = 8,664,393,702.87/128,151.84
  6. Step 6: Final answer
    x = 67,610.37

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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.