Home / 149,127.46-205,804.41-85,475.86

Finding the Fourth Proportional to 149,127.46, 205,804.41 and 85,475.86

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Solution

The fourth proportional to 149,127.46, 205,804.41 and 85,475.86 is: 117,961.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,127.46 : 205,804.41 = 85,475.86 : x
  2. Step 2: Convert to fraction form
    149,127.46/205,804.41 = 85,475.86/x
  3. Step 3: Cross multiply
    149,127.46x = 205,804.41 × 85,475.86
  4. Step 4: Simplify right side
    149,127.46x = 17,591,308,936.54
  5. Step 5: Solve for x
    x = 17,591,308,936.54/149,127.46
  6. Step 6: Final answer
    x = 117,961.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.