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Finding the Fourth Proportional to 100,237.20, 150,355.80 and 89,350.80

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Solution

The fourth proportional to 100,237.20, 150,355.80 and 89,350.80 is: 134,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,237.20 : 150,355.80 = 89,350.80 : x
  2. Step 2: Convert to fraction form
    100,237.20/150,355.80 = 89,350.80/x
  3. Step 3: Cross multiply
    100,237.20x = 150,355.80 × 89,350.80
  4. Step 4: Simplify right side
    100,237.20x = 13,434,411,014.64
  5. Step 5: Solve for x
    x = 13,434,411,014.64/100,237.20
  6. Step 6: Final answer
    x = 134,026.20

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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.