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Finding the Fourth Proportional to 100,010.76, 150,089.96 and 47,420.44

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Solution

The fourth proportional to 100,010.76, 150,089.96 and 47,420.44 is: 71,165.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,010.76 : 150,089.96 = 47,420.44 : x
  2. Step 2: Convert to fraction form
    100,010.76/150,089.96 = 47,420.44/x
  3. Step 3: Cross multiply
    100,010.76x = 150,089.96 × 47,420.44
  4. Step 4: Simplify right side
    100,010.76x = 7,117,331,942.78
  5. Step 5: Solve for x
    x = 7,117,331,942.78/100,010.76
  6. Step 6: Final answer
    x = 71,165.66

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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.