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Finding the Fourth Proportional to 114,937.72, 158,524.06 and 78,660.64

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Solution

The fourth proportional to 114,937.72, 158,524.06 and 78,660.64 is: 108,490.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,937.72 : 158,524.06 = 78,660.64 : x
  2. Step 2: Convert to fraction form
    114,937.72/158,524.06 = 78,660.64/x
  3. Step 3: Cross multiply
    114,937.72x = 158,524.06 × 78,660.64
  4. Step 4: Simplify right side
    114,937.72x = 12,469,604,015.00
  5. Step 5: Solve for x
    x = 12,469,604,015.00/114,937.72
  6. Step 6: Final answer
    x = 108,490.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.