Home / 281,582.39-422,445.14-81,902.77

Finding the Fourth Proportional to 281,582.39, 422,445.14 and 81,902.77

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Solution

The fourth proportional to 281,582.39, 422,445.14 and 81,902.77 is: 122,874.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,582.39 : 422,445.14 = 81,902.77 : x
  2. Step 2: Convert to fraction form
    281,582.39/422,445.14 = 81,902.77/x
  3. Step 3: Cross multiply
    281,582.39x = 422,445.14 × 81,902.77
  4. Step 4: Simplify right side
    281,582.39x = 34,599,427,139.04
  5. Step 5: Solve for x
    x = 34,599,427,139.04/281,582.39
  6. Step 6: Final answer
    x = 122,874.97

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1.5x scale

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.