Home / 157,811.88-217,787.46-86,192.48

Finding the Fourth Proportional to 157,811.88, 217,787.46 and 86,192.48

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Solution

The fourth proportional to 157,811.88, 217,787.46 and 86,192.48 is: 118,949.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,811.88 : 217,787.46 = 86,192.48 : x
  2. Step 2: Convert to fraction form
    157,811.88/217,787.46 = 86,192.48/x
  3. Step 3: Cross multiply
    157,811.88x = 217,787.46 × 86,192.48
  4. Step 4: Simplify right side
    157,811.88x = 18,771,641,290.30
  5. Step 5: Solve for x
    x = 18,771,641,290.30/157,811.88
  6. Step 6: Final answer
    x = 118,949.48

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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.