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Finding the Fourth Proportional to 99,701.40, 149,500.80 and 29,571.60

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Solution

The fourth proportional to 99,701.40, 149,500.80 and 29,571.60 is: 44,342.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,701.40 : 149,500.80 = 29,571.60 : x
  2. Step 2: Convert to fraction form
    99,701.40/149,500.80 = 29,571.60/x
  3. Step 3: Cross multiply
    99,701.40x = 149,500.80 × 29,571.60
  4. Step 4: Simplify right side
    99,701.40x = 4,420,977,857.28
  5. Step 5: Solve for x
    x = 4,420,977,857.28/99,701.40
  6. Step 6: Final answer
    x = 44,342.18

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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.