Home / 155,936.70-215,216.91-102,377.07

Finding the Fourth Proportional to 155,936.70, 215,216.91 and 102,377.07

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Solution

The fourth proportional to 155,936.70, 215,216.91 and 102,377.07 is: 141,296.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,936.70 : 215,216.91 = 102,377.07 : x
  2. Step 2: Convert to fraction form
    155,936.70/215,216.91 = 102,377.07/x
  3. Step 3: Cross multiply
    155,936.70x = 215,216.91 × 102,377.07
  4. Step 4: Simplify right side
    155,936.70x = 22,033,276,660.25
  5. Step 5: Solve for x
    x = 22,033,276,660.25/155,936.70
  6. Step 6: Final answer
    x = 141,296.29

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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.