Home / 112,512.70-168,769.05-104,311.45

Finding the Fourth Proportional to 112,512.70, 168,769.05 and 104,311.45

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Solution

The fourth proportional to 112,512.70, 168,769.05 and 104,311.45 is: 156,467.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,512.70 : 168,769.05 = 104,311.45 : x
  2. Step 2: Convert to fraction form
    112,512.70/168,769.05 = 104,311.45/x
  3. Step 3: Cross multiply
    112,512.70x = 168,769.05 × 104,311.45
  4. Step 4: Simplify right side
    112,512.70x = 17,604,544,320.62
  5. Step 5: Solve for x
    x = 17,604,544,320.62/112,512.70
  6. Step 6: Final answer
    x = 156,467.18

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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.