Home / 205,521.52-283,619.60-120,638.58

Finding the Fourth Proportional to 205,521.52, 283,619.60 and 120,638.58

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Solution

The fourth proportional to 205,521.52, 283,619.60 and 120,638.58 is: 166,481.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,521.52 : 283,619.60 = 120,638.58 : x
  2. Step 2: Convert to fraction form
    205,521.52/283,619.60 = 120,638.58/x
  3. Step 3: Cross multiply
    205,521.52x = 283,619.60 × 120,638.58
  4. Step 4: Simplify right side
    205,521.52x = 34,215,465,804.17
  5. Step 5: Solve for x
    x = 34,215,465,804.17/205,521.52
  6. Step 6: Final answer
    x = 166,481.18

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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.