Home / 153,105.15-211,388.22-136,922.16

Finding the Fourth Proportional to 153,105.15, 211,388.22 and 136,922.16

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Solution

The fourth proportional to 153,105.15, 211,388.22 and 136,922.16 is: 189,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,105.15 : 211,388.22 = 136,922.16 : x
  2. Step 2: Convert to fraction form
    153,105.15/211,388.22 = 136,922.16/x
  3. Step 3: Cross multiply
    153,105.15x = 211,388.22 × 136,922.16
  4. Step 4: Simplify right side
    153,105.15x = 28,943,731,680.96
  5. Step 5: Solve for x
    x = 28,943,731,680.96/153,105.15
  6. Step 6: Final answer
    x = 189,044.79

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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.