Home / 156,968.46-216,611.88-88,991.70

Finding the Fourth Proportional to 156,968.46, 216,611.88 and 88,991.70

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Solution

The fourth proportional to 156,968.46, 216,611.88 and 88,991.70 is: 122,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.46 : 216,611.88 = 88,991.70 : x
  2. Step 2: Convert to fraction form
    156,968.46/216,611.88 = 88,991.70/x
  3. Step 3: Cross multiply
    156,968.46x = 216,611.88 × 88,991.70
  4. Step 4: Simplify right side
    156,968.46x = 19,276,659,441.40
  5. Step 5: Solve for x
    x = 19,276,659,441.40/156,968.46
  6. Step 6: Final answer
    x = 122,805.94

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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.