Home / 149,652.24-206,521.32-81,669.76

Finding the Fourth Proportional to 149,652.24, 206,521.32 and 81,669.76

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Solution

The fourth proportional to 149,652.24, 206,521.32 and 81,669.76 is: 112,704.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,652.24 : 206,521.32 = 81,669.76 : x
  2. Step 2: Convert to fraction form
    149,652.24/206,521.32 = 81,669.76/x
  3. Step 3: Cross multiply
    149,652.24x = 206,521.32 × 81,669.76
  4. Step 4: Simplify right side
    149,652.24x = 16,866,546,639.28
  5. Step 5: Solve for x
    x = 16,866,546,639.28/149,652.24
  6. Step 6: Final answer
    x = 112,704.94

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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.