Home / 99,181.06-148,781.03-28,105.18

Finding the Fourth Proportional to 99,181.06, 148,781.03 and 28,105.18

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Solution

The fourth proportional to 99,181.06, 148,781.03 and 28,105.18 is: 42,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,181.06 : 148,781.03 = 28,105.18 : x
  2. Step 2: Convert to fraction form
    99,181.06/148,781.03 = 28,105.18/x
  3. Step 3: Cross multiply
    99,181.06x = 148,781.03 × 28,105.18
  4. Step 4: Simplify right side
    99,181.06x = 4,181,517,628.74
  5. Step 5: Solve for x
    x = 4,181,517,628.74/99,181.06
  6. Step 6: Final answer
    x = 42,160.45

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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.