Home / 120,785.29-181,199.16-45,911.98

Finding the Fourth Proportional to 120,785.29, 181,199.16 and 45,911.98

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Solution

The fourth proportional to 120,785.29, 181,199.16 and 45,911.98 is: 68,876.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,785.29 : 181,199.16 = 45,911.98 : x
  2. Step 2: Convert to fraction form
    120,785.29/181,199.16 = 45,911.98/x
  3. Step 3: Cross multiply
    120,785.29x = 181,199.16 × 45,911.98
  4. Step 4: Simplify right side
    120,785.29x = 8,319,212,436.44
  5. Step 5: Solve for x
    x = 8,319,212,436.44/120,785.29
  6. Step 6: Final answer
    x = 68,876.04

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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.