Home / 157,928.48-217,940.83-86,308.54

Finding the Fourth Proportional to 157,928.48, 217,940.83 and 86,308.54

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Solution

The fourth proportional to 157,928.48, 217,940.83 and 86,308.54 is: 119,105.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,928.48 : 217,940.83 = 86,308.54 : x
  2. Step 2: Convert to fraction form
    157,928.48/217,940.83 = 86,308.54/x
  3. Step 3: Cross multiply
    157,928.48x = 217,940.83 × 86,308.54
  4. Step 4: Simplify right side
    157,928.48x = 18,810,154,083.06
  5. Step 5: Solve for x
    x = 18,810,154,083.06/157,928.48
  6. Step 6: Final answer
    x = 119,105.52

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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.