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Finding the Fourth Proportional to 106,539.68, 159,560.56 and 84,203.20

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Solution

The fourth proportional to 106,539.68, 159,560.56 and 84,203.20 is: 126,108.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,539.68 : 159,560.56 = 84,203.20 : x
  2. Step 2: Convert to fraction form
    106,539.68/159,560.56 = 84,203.20/x
  3. Step 3: Cross multiply
    106,539.68x = 159,560.56 × 84,203.20
  4. Step 4: Simplify right side
    106,539.68x = 13,435,509,745.79
  5. Step 5: Solve for x
    x = 13,435,509,745.79/106,539.68
  6. Step 6: Final answer
    x = 126,108.04

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1.5x scale

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.