Home / 149,563.71-206,400.73-81,583.11

Finding the Fourth Proportional to 149,563.71, 206,400.73 and 81,583.11

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Solution

The fourth proportional to 149,563.71, 206,400.73 and 81,583.11 is: 112,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,563.71 : 206,400.73 = 81,583.11 : x
  2. Step 2: Convert to fraction form
    149,563.71/206,400.73 = 81,583.11/x
  3. Step 3: Cross multiply
    149,563.71x = 206,400.73 × 81,583.11
  4. Step 4: Simplify right side
    149,563.71x = 16,838,813,459.67
  5. Step 5: Solve for x
    x = 16,838,813,459.67/149,563.71
  6. Step 6: Final answer
    x = 112,586.22

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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.