Home / 112,163.10-168,439.05-108,663.90

Finding the Fourth Proportional to 112,163.10, 168,439.05 and 108,663.90

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Solution

The fourth proportional to 112,163.10, 168,439.05 and 108,663.90 is: 163,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,163.10 : 168,439.05 = 108,663.90 : x
  2. Step 2: Convert to fraction form
    112,163.10/168,439.05 = 108,663.90/x
  3. Step 3: Cross multiply
    112,163.10x = 168,439.05 × 108,663.90
  4. Step 4: Simplify right side
    112,163.10x = 18,303,244,085.30
  5. Step 5: Solve for x
    x = 18,303,244,085.30/112,163.10
  6. Step 6: Final answer
    x = 163,184.19

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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.