Home / 118,787.30-163,795.08-75,698.51

Finding the Fourth Proportional to 118,787.30, 163,795.08 and 75,698.51

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Solution

The fourth proportional to 118,787.30, 163,795.08 and 75,698.51 is: 104,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,787.30 : 163,795.08 = 75,698.51 : x
  2. Step 2: Convert to fraction form
    118,787.30/163,795.08 = 75,698.51/x
  3. Step 3: Cross multiply
    118,787.30x = 163,795.08 × 75,698.51
  4. Step 4: Simplify right side
    118,787.30x = 12,399,042,815.27
  5. Step 5: Solve for x
    x = 12,399,042,815.27/118,787.30
  6. Step 6: Final answer
    x = 104,380.20

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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.