Home / 117,824.40-162,544.78-79,571.52

Finding the Fourth Proportional to 117,824.40, 162,544.78 and 79,571.52

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Solution

The fourth proportional to 117,824.40, 162,544.78 and 79,571.52 is: 109,772.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,824.40 : 162,544.78 = 79,571.52 : x
  2. Step 2: Convert to fraction form
    117,824.40/162,544.78 = 79,571.52/x
  3. Step 3: Cross multiply
    117,824.40x = 162,544.78 × 79,571.52
  4. Step 4: Simplify right side
    117,824.40x = 12,933,935,212.67
  5. Step 5: Solve for x
    x = 12,933,935,212.67/117,824.40
  6. Step 6: Final answer
    x = 109,772.98

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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.