Home / 118,687.19-163,787.04-64,972.31

Finding the Fourth Proportional to 118,687.19, 163,787.04 and 64,972.31

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Solution

The fourth proportional to 118,687.19, 163,787.04 and 64,972.31 is: 89,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,687.19 : 163,787.04 = 64,972.31 : x
  2. Step 2: Convert to fraction form
    118,687.19/163,787.04 = 64,972.31/x
  3. Step 3: Cross multiply
    118,687.19x = 163,787.04 × 64,972.31
  4. Step 4: Simplify right side
    118,687.19x = 10,641,621,517.93
  5. Step 5: Solve for x
    x = 10,641,621,517.93/118,687.19
  6. Step 6: Final answer
    x = 89,661.08

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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.