Home / 157,904.90-217,906.13-86,283.27

Finding the Fourth Proportional to 157,904.90, 217,906.13 and 86,283.27

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Solution

The fourth proportional to 157,904.90, 217,906.13 and 86,283.27 is: 119,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,904.90 : 217,906.13 = 86,283.27 : x
  2. Step 2: Convert to fraction form
    157,904.90/217,906.13 = 86,283.27/x
  3. Step 3: Cross multiply
    157,904.90x = 217,906.13 × 86,283.27
  4. Step 4: Simplify right side
    157,904.90x = 18,801,653,018.03
  5. Step 5: Solve for x
    x = 18,801,653,018.03/157,904.90
  6. Step 6: Final answer
    x = 119,069.48

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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.