Home / 80,108.96-120,134.70-23,938.61

Finding the Fourth Proportional to 80,108.96, 120,134.70 and 23,938.61

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Solution

The fourth proportional to 80,108.96, 120,134.70 and 23,938.61 is: 35,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,108.96 : 120,134.70 = 23,938.61 : x
  2. Step 2: Convert to fraction form
    80,108.96/120,134.70 = 23,938.61/x
  3. Step 3: Cross multiply
    80,108.96x = 120,134.70 × 23,938.61
  4. Step 4: Simplify right side
    80,108.96x = 2,875,857,130.09
  5. Step 5: Solve for x
    x = 2,875,857,130.09/80,108.96
  6. Step 6: Final answer
    x = 35,899.32

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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.