Home / 99,840.08-149,718.72-40,635.56

Finding the Fourth Proportional to 99,840.08, 149,718.72 and 40,635.56

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Solution

The fourth proportional to 99,840.08, 149,718.72 and 40,635.56 is: 60,936.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,840.08 : 149,718.72 = 40,635.56 : x
  2. Step 2: Convert to fraction form
    99,840.08/149,718.72 = 40,635.56/x
  3. Step 3: Cross multiply
    99,840.08x = 149,718.72 × 40,635.56
  4. Step 4: Simplify right side
    99,840.08x = 6,083,904,029.68
  5. Step 5: Solve for x
    x = 6,083,904,029.68/99,840.08
  6. Step 6: Final answer
    x = 60,936.49

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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.