Home / 205,068.78-282,919.23-120,154.86

Finding the Fourth Proportional to 205,068.78, 282,919.23 and 120,154.86

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Solution

The fourth proportional to 205,068.78, 282,919.23 and 120,154.86 is: 165,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,068.78 : 282,919.23 = 120,154.86 : x
  2. Step 2: Convert to fraction form
    205,068.78/282,919.23 = 120,154.86/x
  3. Step 3: Cross multiply
    205,068.78x = 282,919.23 × 120,154.86
  4. Step 4: Simplify right side
    205,068.78x = 33,994,120,471.96
  5. Step 5: Solve for x
    x = 33,994,120,471.96/205,068.78
  6. Step 6: Final answer
    x = 165,769.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.