Home / 222,985.05-307,720.17-121,010.49

Finding the Fourth Proportional to 222,985.05, 307,720.17 and 121,010.49

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Solution

The fourth proportional to 222,985.05, 307,720.17 and 121,010.49 is: 166,994.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,985.05 : 307,720.17 = 121,010.49 : x
  2. Step 2: Convert to fraction form
    222,985.05/307,720.17 = 121,010.49/x
  3. Step 3: Cross multiply
    222,985.05x = 307,720.17 × 121,010.49
  4. Step 4: Simplify right side
    222,985.05x = 37,237,368,554.58
  5. Step 5: Solve for x
    x = 37,237,368,554.58/222,985.05
  6. Step 6: Final answer
    x = 166,994.91

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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.