Home / 133,179.20-183,784.27-72,750.11

Finding the Fourth Proportional to 133,179.20, 183,784.27 and 72,750.11

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Solution

The fourth proportional to 133,179.20, 183,784.27 and 72,750.11 is: 100,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,179.20 : 183,784.27 = 72,750.11 : x
  2. Step 2: Convert to fraction form
    133,179.20/183,784.27 = 72,750.11/x
  3. Step 3: Cross multiply
    133,179.20x = 183,784.27 × 72,750.11
  4. Step 4: Simplify right side
    133,179.20x = 13,370,324,576.10
  5. Step 5: Solve for x
    x = 13,370,324,576.10/133,179.20
  6. Step 6: Final answer
    x = 100,393.49

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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.