Home / 102,361.44-141,289.20-64,660.80

Finding the Fourth Proportional to 102,361.44, 141,289.20 and 64,660.80

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Solution

The fourth proportional to 102,361.44, 141,289.20 and 64,660.80 is: 89,251.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,361.44 : 141,289.20 = 64,660.80 : x
  2. Step 2: Convert to fraction form
    102,361.44/141,289.20 = 64,660.80/x
  3. Step 3: Cross multiply
    102,361.44x = 141,289.20 × 64,660.80
  4. Step 4: Simplify right side
    102,361.44x = 9,135,872,703.36
  5. Step 5: Solve for x
    x = 9,135,872,703.36/102,361.44
  6. Step 6: Final answer
    x = 89,251.12

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1.5x scale

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.