Home / 117,599.92-162,282.45-66,611.50

Finding the Fourth Proportional to 117,599.92, 162,282.45 and 66,611.50

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Solution

The fourth proportional to 117,599.92, 162,282.45 and 66,611.50 is: 91,920.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,599.92 : 162,282.45 = 66,611.50 : x
  2. Step 2: Convert to fraction form
    117,599.92/162,282.45 = 66,611.50/x
  3. Step 3: Cross multiply
    117,599.92x = 162,282.45 × 66,611.50
  4. Step 4: Simplify right side
    117,599.92x = 10,809,877,418.18
  5. Step 5: Solve for x
    x = 10,809,877,418.18/117,599.92
  6. Step 6: Final answer
    x = 91,920.79

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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.