Home / 99,660.20-149,487.06-40,478.36

Finding the Fourth Proportional to 99,660.20, 149,487.06 and 40,478.36

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Solution

The fourth proportional to 99,660.20, 149,487.06 and 40,478.36 is: 60,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660.20 : 149,487.06 = 40,478.36 : x
  2. Step 2: Convert to fraction form
    99,660.20/149,487.06 = 40,478.36/x
  3. Step 3: Cross multiply
    99,660.20x = 149,487.06 × 40,478.36
  4. Step 4: Simplify right side
    99,660.20x = 6,050,991,030.02
  5. Step 5: Solve for x
    x = 6,050,991,030.02/99,660.20
  6. Step 6: Final answer
    x = 60,716.22

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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.