Home / 156,916.11-216,544.73-85,296.36

Finding the Fourth Proportional to 156,916.11, 216,544.73 and 85,296.36

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Solution

The fourth proportional to 156,916.11, 216,544.73 and 85,296.36 is: 117,709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,916.11 : 216,544.73 = 85,296.36 : x
  2. Step 2: Convert to fraction form
    156,916.11/216,544.73 = 85,296.36/x
  3. Step 3: Cross multiply
    156,916.11x = 216,544.73 × 85,296.36
  4. Step 4: Simplify right side
    156,916.11x = 18,470,476,819.70
  5. Step 5: Solve for x
    x = 18,470,476,819.70/156,916.11
  6. Step 6: Final answer
    x = 117,709.24

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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.