Home / 109,195.19-150,688.87-61,449.34

Finding the Fourth Proportional to 109,195.19, 150,688.87 and 61,449.34

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Solution

The fourth proportional to 109,195.19, 150,688.87 and 61,449.34 is: 84,799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,195.19 : 150,688.87 = 61,449.34 : x
  2. Step 2: Convert to fraction form
    109,195.19/150,688.87 = 61,449.34/x
  3. Step 3: Cross multiply
    109,195.19x = 150,688.87 × 61,449.34
  4. Step 4: Simplify right side
    109,195.19x = 9,259,731,606.85
  5. Step 5: Solve for x
    x = 9,259,731,606.85/109,195.19
  6. Step 6: Final answer
    x = 84,799.81

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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.