Home / 157,819.54-217,787.44-86,199.82

Finding the Fourth Proportional to 157,819.54, 217,787.44 and 86,199.82

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Solution

The fourth proportional to 157,819.54, 217,787.44 and 86,199.82 is: 118,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,819.54 : 217,787.44 = 86,199.82 : x
  2. Step 2: Convert to fraction form
    157,819.54/217,787.44 = 86,199.82/x
  3. Step 3: Cross multiply
    157,819.54x = 217,787.44 × 86,199.82
  4. Step 4: Simplify right side
    157,819.54x = 18,773,238,126.26
  5. Step 5: Solve for x
    x = 18,773,238,126.26/157,819.54
  6. Step 6: Final answer
    x = 118,953.83

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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.