Home / 186,862.30-280,380.93-81,667.60

Finding the Fourth Proportional to 186,862.30, 280,380.93 and 81,667.60

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Solution

The fourth proportional to 186,862.30, 280,380.93 and 81,667.60 is: 122,539.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,862.30 : 280,380.93 = 81,667.60 : x
  2. Step 2: Convert to fraction form
    186,862.30/280,380.93 = 81,667.60/x
  3. Step 3: Cross multiply
    186,862.30x = 280,380.93 × 81,667.60
  4. Step 4: Simplify right side
    186,862.30x = 22,898,037,638.87
  5. Step 5: Solve for x
    x = 22,898,037,638.87/186,862.30
  6. Step 6: Final answer
    x = 122,539.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.