Home / 157,879.90-217,877.40-86,264.37

Finding the Fourth Proportional to 157,879.90, 217,877.40 and 86,264.37

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Solution

The fourth proportional to 157,879.90, 217,877.40 and 86,264.37 is: 119,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,879.90 : 217,877.40 = 86,264.37 : x
  2. Step 2: Convert to fraction form
    157,879.90/217,877.40 = 86,264.37/x
  3. Step 3: Cross multiply
    157,879.90x = 217,877.40 × 86,264.37
  4. Step 4: Simplify right side
    157,879.90x = 18,795,056,648.24
  5. Step 5: Solve for x
    x = 18,795,056,648.24/157,879.90
  6. Step 6: Final answer
    x = 119,046.55

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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.