Home / 155,741.54-214,891.18-99,132.26

Finding the Fourth Proportional to 155,741.54, 214,891.18 and 99,132.26

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Solution

The fourth proportional to 155,741.54, 214,891.18 and 99,132.26 is: 136,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,741.54 : 214,891.18 = 99,132.26 : x
  2. Step 2: Convert to fraction form
    155,741.54/214,891.18 = 99,132.26/x
  3. Step 3: Cross multiply
    155,741.54x = 214,891.18 × 99,132.26
  4. Step 4: Simplify right side
    155,741.54x = 21,302,647,005.18
  5. Step 5: Solve for x
    x = 21,302,647,005.18/155,741.54
  6. Step 6: Final answer
    x = 136,782.05

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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.