Home / 103,166.82-154,750.35-28,287.60

Finding the Fourth Proportional to 103,166.82, 154,750.35 and 28,287.60

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Solution

The fourth proportional to 103,166.82, 154,750.35 and 28,287.60 is: 42,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,166.82 : 154,750.35 = 28,287.60 : x
  2. Step 2: Convert to fraction form
    103,166.82/154,750.35 = 28,287.60/x
  3. Step 3: Cross multiply
    103,166.82x = 154,750.35 × 28,287.60
  4. Step 4: Simplify right side
    103,166.82x = 4,377,516,000.66
  5. Step 5: Solve for x
    x = 4,377,516,000.66/103,166.82
  6. Step 6: Final answer
    x = 42,431.43

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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.