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Finding the Fourth Proportional to 146,406.92, 202,041.78 and 79,338.92

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Solution

The fourth proportional to 146,406.92, 202,041.78 and 79,338.92 is: 109,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,406.92 : 202,041.78 = 79,338.92 : x
  2. Step 2: Convert to fraction form
    146,406.92/202,041.78 = 79,338.92/x
  3. Step 3: Cross multiply
    146,406.92x = 202,041.78 × 79,338.92
  4. Step 4: Simplify right side
    146,406.92x = 16,029,776,620.08
  5. Step 5: Solve for x
    x = 16,029,776,620.08/146,406.92
  6. Step 6: Final answer
    x = 109,487.83

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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.