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Finding the Fourth Proportional to 100,330.57, 150,520.91 and 70,806.07

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Solution

The fourth proportional to 100,330.57, 150,520.91 and 70,806.07 is: 106,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,330.57 : 150,520.91 = 70,806.07 : x
  2. Step 2: Convert to fraction form
    100,330.57/150,520.91 = 70,806.07/x
  3. Step 3: Cross multiply
    100,330.57x = 150,520.91 × 70,806.07
  4. Step 4: Simplify right side
    100,330.57x = 10,657,793,536.61
  5. Step 5: Solve for x
    x = 10,657,793,536.61/100,330.57
  6. Step 6: Final answer
    x = 106,226.78

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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.