Home / 93,517.10-139,930.05-85,222.70

Finding the Fourth Proportional to 93,517.10, 139,930.05 and 85,222.70

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Solution

The fourth proportional to 93,517.10, 139,930.05 and 85,222.70 is: 127,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,517.10 : 139,930.05 = 85,222.70 : x
  2. Step 2: Convert to fraction form
    93,517.10/139,930.05 = 85,222.70/x
  3. Step 3: Cross multiply
    93,517.10x = 139,930.05 × 85,222.70
  4. Step 4: Simplify right side
    93,517.10x = 11,925,216,672.14
  5. Step 5: Solve for x
    x = 11,925,216,672.14/93,517.10
  6. Step 6: Final answer
    x = 127,519.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.