Home / 243,788.22-336,421.62-136,362.78

Finding the Fourth Proportional to 243,788.22, 336,421.62 and 136,362.78

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Solution

The fourth proportional to 243,788.22, 336,421.62 and 136,362.78 is: 188,177.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,788.22 : 336,421.62 = 136,362.78 : x
  2. Step 2: Convert to fraction form
    243,788.22/336,421.62 = 136,362.78/x
  3. Step 3: Cross multiply
    243,788.22x = 336,421.62 × 136,362.78
  4. Step 4: Simplify right side
    243,788.22x = 45,875,387,355.30
  5. Step 5: Solve for x
    x = 45,875,387,355.30/243,788.22
  6. Step 6: Final answer
    x = 188,177.21

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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.