Home / 155,418.89-214,184.91-136,173.29

Finding the Fourth Proportional to 155,418.89, 214,184.91 and 136,173.29

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Solution

The fourth proportional to 155,418.89, 214,184.91 and 136,173.29 is: 187,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,418.89 : 214,184.91 = 136,173.29 : x
  2. Step 2: Convert to fraction form
    155,418.89/214,184.91 = 136,173.29/x
  3. Step 3: Cross multiply
    155,418.89x = 214,184.91 × 136,173.29
  4. Step 4: Simplify right side
    155,418.89x = 29,166,262,536.80
  5. Step 5: Solve for x
    x = 29,166,262,536.80/155,418.89
  6. Step 6: Final answer
    x = 187,662.28

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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.