Home / 157,198.50-216,933.57-85,579.02

Finding the Fourth Proportional to 157,198.50, 216,933.57 and 85,579.02

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Solution

The fourth proportional to 157,198.50, 216,933.57 and 85,579.02 is: 118,098.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,198.50 : 216,933.57 = 85,579.02 : x
  2. Step 2: Convert to fraction form
    157,198.50/216,933.57 = 85,579.02/x
  3. Step 3: Cross multiply
    157,198.50x = 216,933.57 × 85,579.02
  4. Step 4: Simplify right side
    157,198.50x = 18,564,962,325.70
  5. Step 5: Solve for x
    x = 18,564,962,325.70/157,198.50
  6. Step 6: Final answer
    x = 118,098.85

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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.