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Finding the Fourth Proportional to 100,069.60, 150,122.59 and 47,478.60

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Solution

The fourth proportional to 100,069.60, 150,122.59 and 47,478.60 is: 71,226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,069.60 : 150,122.59 = 47,478.60 : x
  2. Step 2: Convert to fraction form
    100,069.60/150,122.59 = 47,478.60/x
  3. Step 3: Cross multiply
    100,069.60x = 150,122.59 × 47,478.60
  4. Step 4: Simplify right side
    100,069.60x = 7,127,610,401.57
  5. Step 5: Solve for x
    x = 7,127,610,401.57/100,069.60
  6. Step 6: Final answer
    x = 71,226.53

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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.