Home / 149,732.63-206,629.62-81,749.02

Finding the Fourth Proportional to 149,732.63, 206,629.62 and 81,749.02

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Solution

The fourth proportional to 149,732.63, 206,629.62 and 81,749.02 is: 112,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,732.63 : 206,629.62 = 81,749.02 : x
  2. Step 2: Convert to fraction form
    149,732.63/206,629.62 = 81,749.02/x
  3. Step 3: Cross multiply
    149,732.63x = 206,629.62 × 81,749.02
  4. Step 4: Simplify right side
    149,732.63x = 16,891,767,904.82
  5. Step 5: Solve for x
    x = 16,891,767,904.82/149,732.63
  6. Step 6: Final answer
    x = 112,812.87

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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.