Home / 149,014.51-205,642.46-81,032.83

Finding the Fourth Proportional to 149,014.51, 205,642.46 and 81,032.83

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Solution

The fourth proportional to 149,014.51, 205,642.46 and 81,032.83 is: 111,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,014.51 : 205,642.46 = 81,032.83 : x
  2. Step 2: Convert to fraction form
    149,014.51/205,642.46 = 81,032.83/x
  3. Step 3: Cross multiply
    149,014.51x = 205,642.46 × 81,032.83
  4. Step 4: Simplify right side
    149,014.51x = 16,663,790,190.44
  5. Step 5: Solve for x
    x = 16,663,790,190.44/149,014.51
  6. Step 6: Final answer
    x = 111,826.63

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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.