Home / 190,422.09-262,782.70-105,539.22

Finding the Fourth Proportional to 190,422.09, 262,782.70 and 105,539.22

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Solution

The fourth proportional to 190,422.09, 262,782.70 and 105,539.22 is: 145,644.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,422.09 : 262,782.70 = 105,539.22 : x
  2. Step 2: Convert to fraction form
    190,422.09/262,782.70 = 105,539.22/x
  3. Step 3: Cross multiply
    190,422.09x = 262,782.70 × 105,539.22
  4. Step 4: Simplify right side
    190,422.09x = 27,733,880,923.65
  5. Step 5: Solve for x
    x = 27,733,880,923.65/190,422.09
  6. Step 6: Final answer
    x = 145,644.24

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1.5x scale

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.