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Finding the Fourth Proportional to 146,889.28, 202,707.72 and 79,821.28

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Solution

The fourth proportional to 146,889.28, 202,707.72 and 79,821.28 is: 110,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,889.28 : 202,707.72 = 79,821.28 : x
  2. Step 2: Convert to fraction form
    146,889.28/202,707.72 = 79,821.28/x
  3. Step 3: Cross multiply
    146,889.28x = 202,707.72 × 79,821.28
  4. Step 4: Simplify right side
    146,889.28x = 16,180,389,676.28
  5. Step 5: Solve for x
    x = 16,180,389,676.28/146,889.28
  6. Step 6: Final answer
    x = 110,153.65

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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.