Home / 204,929.60-307,394.40-125,787.20

Finding the Fourth Proportional to 204,929.60, 307,394.40 and 125,787.20

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Solution

The fourth proportional to 204,929.60, 307,394.40 and 125,787.20 is: 188,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,929.60 : 307,394.40 = 125,787.20 : x
  2. Step 2: Convert to fraction form
    204,929.60/307,394.40 = 125,787.20/x
  3. Step 3: Cross multiply
    204,929.60x = 307,394.40 × 125,787.20
  4. Step 4: Simplify right side
    204,929.60x = 38,666,280,871.68
  5. Step 5: Solve for x
    x = 38,666,280,871.68/204,929.60
  6. Step 6: Final answer
    x = 188,680.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.