Home / 106,241.64-159,461-53,688.04

Finding the Fourth Proportional to 106,241.64, 159,461 and 53,688.04

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Solution

The fourth proportional to 106,241.64, 159,461 and 53,688.04 is: 80,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,241.64 : 159,461 = 53,688.04 : x
  2. Step 2: Convert to fraction form
    106,241.64/159,461 = 53,688.04/x
  3. Step 3: Cross multiply
    106,241.64x = 159,461 × 53,688.04
  4. Step 4: Simplify right side
    106,241.64x = 8,561,148,546.44
  5. Step 5: Solve for x
    x = 8,561,148,546.44/106,241.64
  6. Step 6: Final answer
    x = 80,581.86

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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.