Home / 165,965.40-248,948.10-112,821.30

Finding the Fourth Proportional to 165,965.40, 248,948.10 and 112,821.30

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Solution

The fourth proportional to 165,965.40, 248,948.10 and 112,821.30 is: 169,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,965.40 : 248,948.10 = 112,821.30 : x
  2. Step 2: Convert to fraction form
    165,965.40/248,948.10 = 112,821.30/x
  3. Step 3: Cross multiply
    165,965.40x = 248,948.10 × 112,821.30
  4. Step 4: Simplify right side
    165,965.40x = 28,086,648,274.53
  5. Step 5: Solve for x
    x = 28,086,648,274.53/165,965.40
  6. Step 6: Final answer
    x = 169,231.95

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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.