Home / 99,408.28-149,149.02-46,125.76

Finding the Fourth Proportional to 99,408.28, 149,149.02 and 46,125.76

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Solution

The fourth proportional to 99,408.28, 149,149.02 and 46,125.76 is: 69,205.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,408.28 : 149,149.02 = 46,125.76 : x
  2. Step 2: Convert to fraction form
    99,408.28/149,149.02 = 46,125.76/x
  3. Step 3: Cross multiply
    99,408.28x = 149,149.02 × 46,125.76
  4. Step 4: Simplify right side
    99,408.28x = 6,879,611,900.76
  5. Step 5: Solve for x
    x = 6,879,611,900.76/99,408.28
  6. Step 6: Final answer
    x = 69,205.62

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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.