Home / 149,025.24-205,656.21-81,042.87

Finding the Fourth Proportional to 149,025.24, 205,656.21 and 81,042.87

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Solution

The fourth proportional to 149,025.24, 205,656.21 and 81,042.87 is: 111,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,025.24 : 205,656.21 = 81,042.87 : x
  2. Step 2: Convert to fraction form
    149,025.24/205,656.21 = 81,042.87/x
  3. Step 3: Cross multiply
    149,025.24x = 205,656.21 × 81,042.87
  4. Step 4: Simplify right side
    149,025.24x = 16,666,969,491.72
  5. Step 5: Solve for x
    x = 16,666,969,491.72/149,025.24
  6. Step 6: Final answer
    x = 111,839.91

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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.