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Finding the Fourth Proportional to 146,474.40, 202,134.60 and 79,406.40

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Solution

The fourth proportional to 146,474.40, 202,134.60 and 79,406.40 is: 109,580.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,474.40 : 202,134.60 = 79,406.40 : x
  2. Step 2: Convert to fraction form
    146,474.40/202,134.60 = 79,406.40/x
  3. Step 3: Cross multiply
    146,474.40x = 202,134.60 × 79,406.40
  4. Step 4: Simplify right side
    146,474.40x = 16,050,780,901.44
  5. Step 5: Solve for x
    x = 16,050,780,901.44/146,474.40
  6. Step 6: Final answer
    x = 109,580.79

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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.