Home / 132,836.88-183,311.64-72,409.20

Finding the Fourth Proportional to 132,836.88, 183,311.64 and 72,409.20

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Solution

The fourth proportional to 132,836.88, 183,311.64 and 72,409.20 is: 99,922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,836.88 : 183,311.64 = 72,409.20 : x
  2. Step 2: Convert to fraction form
    132,836.88/183,311.64 = 72,409.20/x
  3. Step 3: Cross multiply
    132,836.88x = 183,311.64 × 72,409.20
  4. Step 4: Simplify right side
    132,836.88x = 13,273,449,203.09
  5. Step 5: Solve for x
    x = 13,273,449,203.09/132,836.88
  6. Step 6: Final answer
    x = 99,922.92

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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.