Home / 156,905.84-216,524.76-89,824.88

Finding the Fourth Proportional to 156,905.84, 216,524.76 and 89,824.88

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Solution

The fourth proportional to 156,905.84, 216,524.76 and 89,824.88 is: 123,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,905.84 : 216,524.76 = 89,824.88 : x
  2. Step 2: Convert to fraction form
    156,905.84/216,524.76 = 89,824.88/x
  3. Step 3: Cross multiply
    156,905.84x = 216,524.76 × 89,824.88
  4. Step 4: Simplify right side
    156,905.84x = 19,449,310,584.03
  5. Step 5: Solve for x
    x = 19,449,310,584.03/156,905.84
  6. Step 6: Final answer
    x = 123,955.30

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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.