Home / 112,781.25-169,173.90-52,776.45

Finding the Fourth Proportional to 112,781.25, 169,173.90 and 52,776.45

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Solution

The fourth proportional to 112,781.25, 169,173.90 and 52,776.45 is: 79,165.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,781.25 : 169,173.90 = 52,776.45 : x
  2. Step 2: Convert to fraction form
    112,781.25/169,173.90 = 52,776.45/x
  3. Step 3: Cross multiply
    112,781.25x = 169,173.90 × 52,776.45
  4. Step 4: Simplify right side
    112,781.25x = 8,928,397,874.66
  5. Step 5: Solve for x
    x = 8,928,397,874.66/112,781.25
  6. Step 6: Final answer
    x = 79,165.62

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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.