Home / 107,821.53-161,710.02-28,917

Finding the Fourth Proportional to 107,821.53, 161,710.02 and 28,917

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Solution

The fourth proportional to 107,821.53, 161,710.02 and 28,917 is: 43,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,821.53 : 161,710.02 = 28,917 : x
  2. Step 2: Convert to fraction form
    107,821.53/161,710.02 = 28,917/x
  3. Step 3: Cross multiply
    107,821.53x = 161,710.02 × 28,917
  4. Step 4: Simplify right side
    107,821.53x = 4,676,168,648.34
  5. Step 5: Solve for x
    x = 4,676,168,648.34/107,821.53
  6. Step 6: Final answer
    x = 43,369.53

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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.