Home / 170,896.32-235,819.20-99,291.36

Finding the Fourth Proportional to 170,896.32, 235,819.20 and 99,291.36

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Solution

The fourth proportional to 170,896.32, 235,819.20 and 99,291.36 is: 137,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,896.32 : 235,819.20 = 99,291.36 : x
  2. Step 2: Convert to fraction form
    170,896.32/235,819.20 = 99,291.36/x
  3. Step 3: Cross multiply
    170,896.32x = 235,819.20 × 99,291.36
  4. Step 4: Simplify right side
    170,896.32x = 23,414,809,082.11
  5. Step 5: Solve for x
    x = 23,414,809,082.11/170,896.32
  6. Step 6: Final answer
    x = 137,011.78

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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.