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Finding the Fourth Proportional to 101,660.80, 152,491.20 and 89,996.80

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Solution

The fourth proportional to 101,660.80, 152,491.20 and 89,996.80 is: 134,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,660.80 : 152,491.20 = 89,996.80 : x
  2. Step 2: Convert to fraction form
    101,660.80/152,491.20 = 89,996.80/x
  3. Step 3: Cross multiply
    101,660.80x = 152,491.20 × 89,996.80
  4. Step 4: Simplify right side
    101,660.80x = 13,723,720,028.16
  5. Step 5: Solve for x
    x = 13,723,720,028.16/101,660.80
  6. Step 6: Final answer
    x = 134,995.20

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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.