Home / 149,563.80-206,398.69-81,582.24

Finding the Fourth Proportional to 149,563.80, 206,398.69 and 81,582.24

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Solution

The fourth proportional to 149,563.80, 206,398.69 and 81,582.24 is: 112,583.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,563.80 : 206,398.69 = 81,582.24 : x
  2. Step 2: Convert to fraction form
    149,563.80/206,398.69 = 81,582.24/x
  3. Step 3: Cross multiply
    149,563.80x = 206,398.69 × 81,582.24
  4. Step 4: Simplify right side
    149,563.80x = 16,838,466,431.27
  5. Step 5: Solve for x
    x = 16,838,466,431.27/149,563.80
  6. Step 6: Final answer
    x = 112,583.84

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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.