Home / 112,982.50-169,502.22-79,767.43

Finding the Fourth Proportional to 112,982.50, 169,502.22 and 79,767.43

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Solution

The fourth proportional to 112,982.50, 169,502.22 and 79,767.43 is: 119,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,982.50 : 169,502.22 = 79,767.43 : x
  2. Step 2: Convert to fraction form
    112,982.50/169,502.22 = 79,767.43/x
  3. Step 3: Cross multiply
    112,982.50x = 169,502.22 × 79,767.43
  4. Step 4: Simplify right side
    112,982.50x = 13,520,756,998.39
  5. Step 5: Solve for x
    x = 13,520,756,998.39/112,982.50
  6. Step 6: Final answer
    x = 119,671.25

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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.