Home / 204,801.50-282,612.29-128,318.46

Finding the Fourth Proportional to 204,801.50, 282,612.29 and 128,318.46

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Solution

The fourth proportional to 204,801.50, 282,612.29 and 128,318.46 is: 177,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,801.50 : 282,612.29 = 128,318.46 : x
  2. Step 2: Convert to fraction form
    204,801.50/282,612.29 = 128,318.46/x
  3. Step 3: Cross multiply
    204,801.50x = 282,612.29 × 128,318.46
  4. Step 4: Simplify right side
    204,801.50x = 36,264,373,188.28
  5. Step 5: Solve for x
    x = 36,264,373,188.28/204,801.50
  6. Step 6: Final answer
    x = 177,070.84

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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.