Home / 118,787.73-163,881.41-67,803.30

Finding the Fourth Proportional to 118,787.73, 163,881.41 and 67,803.30

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Solution

The fourth proportional to 118,787.73, 163,881.41 and 67,803.30 is: 93,542.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,787.73 : 163,881.41 = 67,803.30 : x
  2. Step 2: Convert to fraction form
    118,787.73/163,881.41 = 67,803.30/x
  3. Step 3: Cross multiply
    118,787.73x = 163,881.41 × 67,803.30
  4. Step 4: Simplify right side
    118,787.73x = 11,111,700,067.64
  5. Step 5: Solve for x
    x = 11,111,700,067.64/118,787.73
  6. Step 6: Final answer
    x = 93,542.49

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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.