Home / 112,379.76-168,569.03-45,819.63

Finding the Fourth Proportional to 112,379.76, 168,569.03 and 45,819.63

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Solution

The fourth proportional to 112,379.76, 168,569.03 and 45,819.63 is: 68,729.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,379.76 : 168,569.03 = 45,819.63 : x
  2. Step 2: Convert to fraction form
    112,379.76/168,569.03 = 45,819.63/x
  3. Step 3: Cross multiply
    112,379.76x = 168,569.03 × 45,819.63
  4. Step 4: Simplify right side
    112,379.76x = 7,723,770,354.96
  5. Step 5: Solve for x
    x = 7,723,770,354.96/112,379.76
  6. Step 6: Final answer
    x = 68,729.19

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1.5x scale

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.