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Finding the Fourth Proportional to 146,389.48, 202,015.82 and 79,321.48

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Solution

The fourth proportional to 146,389.48, 202,015.82 and 79,321.48 is: 109,462.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,389.48 : 202,015.82 = 79,321.48 : x
  2. Step 2: Convert to fraction form
    146,389.48/202,015.82 = 79,321.48/x
  3. Step 3: Cross multiply
    146,389.48x = 202,015.82 × 79,321.48
  4. Step 4: Simplify right side
    146,389.48x = 16,024,193,519.08
  5. Step 5: Solve for x
    x = 16,024,193,519.08/146,389.48
  6. Step 6: Final answer
    x = 109,462.74

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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.