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Finding the Fourth Proportional to 146,405.84, 202,039.92 and 79,337.84

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Solution

The fourth proportional to 146,405.84, 202,039.92 and 79,337.84 is: 109,486.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,405.84 : 202,039.92 = 79,337.84 : x
  2. Step 2: Convert to fraction form
    146,405.84/202,039.92 = 79,337.84/x
  3. Step 3: Cross multiply
    146,405.84x = 202,039.92 × 79,337.84
  4. Step 4: Simplify right side
    146,405.84x = 16,029,410,846.57
  5. Step 5: Solve for x
    x = 16,029,410,846.57/146,405.84
  6. Step 6: Final answer
    x = 109,486.14

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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.