Home / 155,774.88-214,828.20-102,040.29

Finding the Fourth Proportional to 155,774.88, 214,828.20 and 102,040.29

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Solution

The fourth proportional to 155,774.88, 214,828.20 and 102,040.29 is: 140,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,774.88 : 214,828.20 = 102,040.29 : x
  2. Step 2: Convert to fraction form
    155,774.88/214,828.20 = 102,040.29/x
  3. Step 3: Cross multiply
    155,774.88x = 214,828.20 × 102,040.29
  4. Step 4: Simplify right side
    155,774.88x = 21,921,131,828.18
  5. Step 5: Solve for x
    x = 21,921,131,828.18/155,774.88
  6. Step 6: Final answer
    x = 140,723.15

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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.