Home / 155,889.32-214,983.79-102,154.82

Finding the Fourth Proportional to 155,889.32, 214,983.79 and 102,154.82

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Solution

The fourth proportional to 155,889.32, 214,983.79 and 102,154.82 is: 140,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,889.32 : 214,983.79 = 102,154.82 : x
  2. Step 2: Convert to fraction form
    155,889.32/214,983.79 = 102,154.82/x
  3. Step 3: Cross multiply
    155,889.32x = 214,983.79 × 102,154.82
  4. Step 4: Simplify right side
    155,889.32x = 21,961,629,040.06
  5. Step 5: Solve for x
    x = 21,961,629,040.06/155,889.32
  6. Step 6: Final answer
    x = 140,879.63

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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.