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Finding the Fourth Proportional to 132,808.80, 183,274.20 and 72,380.80

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Solution

The fourth proportional to 132,808.80, 183,274.20 and 72,380.80 is: 99,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,808.80 : 183,274.20 = 72,380.80 : x
  2. Step 2: Convert to fraction form
    132,808.80/183,274.20 = 72,380.80/x
  3. Step 3: Cross multiply
    132,808.80x = 183,274.20 × 72,380.80
  4. Step 4: Simplify right side
    132,808.80x = 13,265,533,215.36
  5. Step 5: Solve for x
    x = 13,265,533,215.36/132,808.80
  6. Step 6: Final answer
    x = 99,884.44

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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.