Home / 190,367.12-262,708.46-105,486

Finding the Fourth Proportional to 190,367.12, 262,708.46 and 105,486

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Solution

The fourth proportional to 190,367.12, 262,708.46 and 105,486 is: 145,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,367.12 : 262,708.46 = 105,486 : x
  2. Step 2: Convert to fraction form
    190,367.12/262,708.46 = 105,486/x
  3. Step 3: Cross multiply
    190,367.12x = 262,708.46 × 105,486
  4. Step 4: Simplify right side
    190,367.12x = 27,712,064,611.56
  5. Step 5: Solve for x
    x = 27,712,064,611.56/190,367.12
  6. Step 6: Final answer
    x = 145,571.70

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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.