Home / 204,966.80-282,985.76-128,590.56

Finding the Fourth Proportional to 204,966.80, 282,985.76 and 128,590.56

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Solution

The fourth proportional to 204,966.80, 282,985.76 and 128,590.56 is: 177,537.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,966.80 : 282,985.76 = 128,590.56 : x
  2. Step 2: Convert to fraction form
    204,966.80/282,985.76 = 128,590.56/x
  3. Step 3: Cross multiply
    204,966.80x = 282,985.76 × 128,590.56
  4. Step 4: Simplify right side
    204,966.80x = 36,389,297,350.43
  5. Step 5: Solve for x
    x = 36,389,297,350.43/204,966.80
  6. Step 6: Final answer
    x = 177,537.52

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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.