Home / 99,919.48-149,887.86-40,759.24

Finding the Fourth Proportional to 99,919.48, 149,887.86 and 40,759.24

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Solution

The fourth proportional to 99,919.48, 149,887.86 and 40,759.24 is: 61,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,919.48 : 149,887.86 = 40,759.24 : x
  2. Step 2: Convert to fraction form
    99,919.48/149,887.86 = 40,759.24/x
  3. Step 3: Cross multiply
    99,919.48x = 149,887.86 × 40,759.24
  4. Step 4: Simplify right side
    99,919.48x = 6,109,315,258.83
  5. Step 5: Solve for x
    x = 6,109,315,258.83/99,919.48
  6. Step 6: Final answer
    x = 61,142.38

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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.