Home / 190,134.78-262,388.07-105,253.26

Finding the Fourth Proportional to 190,134.78, 262,388.07 and 105,253.26

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Solution

The fourth proportional to 190,134.78, 262,388.07 and 105,253.26 is: 145,250.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,134.78 : 262,388.07 = 105,253.26 : x
  2. Step 2: Convert to fraction form
    190,134.78/262,388.07 = 105,253.26/x
  3. Step 3: Cross multiply
    190,134.78x = 262,388.07 × 105,253.26
  4. Step 4: Simplify right side
    190,134.78x = 27,617,199,752.61
  5. Step 5: Solve for x
    x = 27,617,199,752.61/190,134.78
  6. Step 6: Final answer
    x = 145,250.65

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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.