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Finding the Fourth Proportional to 99,993.14, 149,989.72 and 69,025.22

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Solution

The fourth proportional to 99,993.14, 149,989.72 and 69,025.22 is: 103,537.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,993.14 : 149,989.72 = 69,025.22 : x
  2. Step 2: Convert to fraction form
    99,993.14/149,989.72 = 69,025.22/x
  3. Step 3: Cross multiply
    99,993.14x = 149,989.72 × 69,025.22
  4. Step 4: Simplify right side
    99,993.14x = 10,353,073,420.74
  5. Step 5: Solve for x
    x = 10,353,073,420.74/99,993.14
  6. Step 6: Final answer
    x = 103,537.84

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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.