Home / 149,249.34-205,953.69-84,719.88

Finding the Fourth Proportional to 149,249.34, 205,953.69 and 84,719.88

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Solution

The fourth proportional to 149,249.34, 205,953.69 and 84,719.88 is: 116,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,249.34 : 205,953.69 = 84,719.88 : x
  2. Step 2: Convert to fraction form
    149,249.34/205,953.69 = 84,719.88/x
  3. Step 3: Cross multiply
    149,249.34x = 205,953.69 × 84,719.88
  4. Step 4: Simplify right side
    149,249.34x = 17,448,371,902.36
  5. Step 5: Solve for x
    x = 17,448,371,902.36/149,249.34
  6. Step 6: Final answer
    x = 116,907.53

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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.