Home / 156,767.10-234,977.85-86,696.70

Finding the Fourth Proportional to 156,767.10, 234,977.85 and 86,696.70

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Solution

The fourth proportional to 156,767.10, 234,977.85 and 86,696.70 is: 129,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,767.10 : 234,977.85 = 86,696.70 : x
  2. Step 2: Convert to fraction form
    156,767.10/234,977.85 = 86,696.70/x
  3. Step 3: Cross multiply
    156,767.10x = 234,977.85 × 86,696.70
  4. Step 4: Simplify right side
    156,767.10x = 20,371,804,168.10
  5. Step 5: Solve for x
    x = 20,371,804,168.10/156,767.10
  6. Step 6: Final answer
    x = 129,949.49

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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.