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Finding the Fourth Proportional to 101,113.20, 151,410.60 and 74,674.80

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Solution

The fourth proportional to 101,113.20, 151,410.60 and 74,674.80 is: 111,820.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,113.20 : 151,410.60 = 74,674.80 : x
  2. Step 2: Convert to fraction form
    101,113.20/151,410.60 = 74,674.80/x
  3. Step 3: Cross multiply
    101,113.20x = 151,410.60 × 74,674.80
  4. Step 4: Simplify right side
    101,113.20x = 11,306,556,272.88
  5. Step 5: Solve for x
    x = 11,306,556,272.88/101,113.20
  6. Step 6: Final answer
    x = 111,820.77

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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.