Home / 103,132.82-154,699.35-28,253.61

Finding the Fourth Proportional to 103,132.82, 154,699.35 and 28,253.61

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Solution

The fourth proportional to 103,132.82, 154,699.35 and 28,253.61 is: 42,380.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,132.82 : 154,699.35 = 28,253.61 : x
  2. Step 2: Convert to fraction form
    103,132.82/154,699.35 = 28,253.61/x
  3. Step 3: Cross multiply
    103,132.82x = 154,699.35 × 28,253.61
  4. Step 4: Simplify right side
    103,132.82x = 4,370,814,187.39
  5. Step 5: Solve for x
    x = 4,370,814,187.39/103,132.82
  6. Step 6: Final answer
    x = 42,380.44

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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.