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Finding the Fourth Proportional to 132,309.87, 182,586.74 and 71,880.09

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Solution

The fourth proportional to 132,309.87, 182,586.74 and 71,880.09 is: 99,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,309.87 : 182,586.74 = 71,880.09 : x
  2. Step 2: Convert to fraction form
    132,309.87/182,586.74 = 71,880.09/x
  3. Step 3: Cross multiply
    132,309.87x = 182,586.74 × 71,880.09
  4. Step 4: Simplify right side
    132,309.87x = 13,124,350,944.61
  5. Step 5: Solve for x
    x = 13,124,350,944.61/132,309.87
  6. Step 6: Final answer
    x = 99,194.04

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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.