Home / 412,115.36-618,166.94-112,595.40

Finding the Fourth Proportional to 412,115.36, 618,166.94 and 112,595.40

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Solution

The fourth proportional to 412,115.36, 618,166.94 and 112,595.40 is: 168,891.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,115.36 : 618,166.94 = 112,595.40 : x
  2. Step 2: Convert to fraction form
    412,115.36/618,166.94 = 112,595.40/x
  3. Step 3: Cross multiply
    412,115.36x = 618,166.94 × 112,595.40
  4. Step 4: Simplify right side
    412,115.36x = 69,602,753,313.10
  5. Step 5: Solve for x
    x = 69,602,753,313.10/412,115.36
  6. Step 6: Final answer
    x = 168,891.43

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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.