Home / 204,989.30-282,701.04-128,516.74

Finding the Fourth Proportional to 204,989.30, 282,701.04 and 128,516.74

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Solution

The fourth proportional to 204,989.30, 282,701.04 and 128,516.74 is: 177,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,989.30 : 282,701.04 = 128,516.74 : x
  2. Step 2: Convert to fraction form
    204,989.30/282,701.04 = 128,516.74/x
  3. Step 3: Cross multiply
    204,989.30x = 282,701.04 × 128,516.74
  4. Step 4: Simplify right side
    204,989.30x = 36,331,816,055.41
  5. Step 5: Solve for x
    x = 36,331,816,055.41/204,989.30
  6. Step 6: Final answer
    x = 177,237.62

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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.