Home / 133,204.88-183,835.45-72,784.71

Finding the Fourth Proportional to 133,204.88, 183,835.45 and 72,784.71

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Solution

The fourth proportional to 133,204.88, 183,835.45 and 72,784.71 is: 100,449.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,204.88 : 183,835.45 = 72,784.71 : x
  2. Step 2: Convert to fraction form
    133,204.88/183,835.45 = 72,784.71/x
  3. Step 3: Cross multiply
    133,204.88x = 183,835.45 × 72,784.71
  4. Step 4: Simplify right side
    133,204.88x = 13,380,409,915.97
  5. Step 5: Solve for x
    x = 13,380,409,915.97/133,204.88
  6. Step 6: Final answer
    x = 100,449.85

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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.