Home / 190,137.95-262,390.42-105,255.01

Finding the Fourth Proportional to 190,137.95, 262,390.42 and 105,255.01

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Solution

The fourth proportional to 190,137.95, 262,390.42 and 105,255.01 is: 145,251.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,137.95 : 262,390.42 = 105,255.01 : x
  2. Step 2: Convert to fraction form
    190,137.95/262,390.42 = 105,255.01/x
  3. Step 3: Cross multiply
    190,137.95x = 262,390.42 × 105,255.01
  4. Step 4: Simplify right side
    190,137.95x = 27,617,904,969.05
  5. Step 5: Solve for x
    x = 27,617,904,969.05/190,137.95
  6. Step 6: Final answer
    x = 145,251.94

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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.