Home / 99,715.50-149,489.36-46,380.39

Finding the Fourth Proportional to 99,715.50, 149,489.36 and 46,380.39

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Solution

The fourth proportional to 99,715.50, 149,489.36 and 46,380.39 is: 69,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,715.50 : 149,489.36 = 46,380.39 : x
  2. Step 2: Convert to fraction form
    99,715.50/149,489.36 = 46,380.39/x
  3. Step 3: Cross multiply
    99,715.50x = 149,489.36 × 46,380.39
  4. Step 4: Simplify right side
    99,715.50x = 6,933,374,199.09
  5. Step 5: Solve for x
    x = 6,933,374,199.09/99,715.50
  6. Step 6: Final answer
    x = 69,531.56

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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.