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Finding the Fourth Proportional to 146,378.94, 202,003.07 and 79,310.94

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Solution

The fourth proportional to 146,378.94, 202,003.07 and 79,310.94 is: 109,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,378.94 : 202,003.07 = 79,310.94 : x
  2. Step 2: Convert to fraction form
    146,378.94/202,003.07 = 79,310.94/x
  3. Step 3: Cross multiply
    146,378.94x = 202,003.07 × 79,310.94
  4. Step 4: Simplify right side
    146,378.94x = 16,021,053,364.59
  5. Step 5: Solve for x
    x = 16,021,053,364.59/146,378.94
  6. Step 6: Final answer
    x = 109,449.17

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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.