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Finding the Fourth Proportional to 100,153.20, 150,229.80 and 89,266.80

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Solution

The fourth proportional to 100,153.20, 150,229.80 and 89,266.80 is: 133,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,153.20 : 150,229.80 = 89,266.80 : x
  2. Step 2: Convert to fraction form
    100,153.20/150,229.80 = 89,266.80/x
  3. Step 3: Cross multiply
    100,153.20x = 150,229.80 × 89,266.80
  4. Step 4: Simplify right side
    100,153.20x = 13,410,533,510.64
  5. Step 5: Solve for x
    x = 13,410,533,510.64/100,153.20
  6. Step 6: Final answer
    x = 133,900.20

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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.