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Finding the Fourth Proportional to 128,468.57, 192,726.54 and 44,241.12

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Solution

The fourth proportional to 128,468.57, 192,726.54 and 44,241.12 is: 66,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,468.57 : 192,726.54 = 44,241.12 : x
  2. Step 2: Convert to fraction form
    128,468.57/192,726.54 = 44,241.12/x
  3. Step 3: Cross multiply
    128,468.57x = 192,726.54 × 44,241.12
  4. Step 4: Simplify right side
    128,468.57x = 8,526,437,983.32
  5. Step 5: Solve for x
    x = 8,526,437,983.32/128,468.57
  6. Step 6: Final answer
    x = 66,369.84

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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.