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Finding the Fourth Proportional to 100,079.60, 150,119.24 and 47,460.32

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Solution

The fourth proportional to 100,079.60, 150,119.24 and 47,460.32 is: 71,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,079.60 : 150,119.24 = 47,460.32 : x
  2. Step 2: Convert to fraction form
    100,079.60/150,119.24 = 47,460.32/x
  3. Step 3: Cross multiply
    100,079.60x = 150,119.24 × 47,460.32
  4. Step 4: Simplify right side
    100,079.60x = 7,124,707,168.56
  5. Step 5: Solve for x
    x = 7,124,707,168.56/100,079.60
  6. Step 6: Final answer
    x = 71,190.40

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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.