Home / 135,869.32-203,734.60-79,818.92

Finding the Fourth Proportional to 135,869.32, 203,734.60 and 79,818.92

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Solution

The fourth proportional to 135,869.32, 203,734.60 and 79,818.92 is: 119,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,869.32 : 203,734.60 = 79,818.92 : x
  2. Step 2: Convert to fraction form
    135,869.32/203,734.60 = 79,818.92/x
  3. Step 3: Cross multiply
    135,869.32x = 203,734.60 × 79,818.92
  4. Step 4: Simplify right side
    135,869.32x = 16,261,875,738.63
  5. Step 5: Solve for x
    x = 16,261,875,738.63/135,869.32
  6. Step 6: Final answer
    x = 119,687.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.