Home / 190,247.31-262,530.76-105,357.69

Finding the Fourth Proportional to 190,247.31, 262,530.76 and 105,357.69

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Solution

The fourth proportional to 190,247.31, 262,530.76 and 105,357.69 is: 145,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,247.31 : 262,530.76 = 105,357.69 : x
  2. Step 2: Convert to fraction form
    190,247.31/262,530.76 = 105,357.69/x
  3. Step 3: Cross multiply
    190,247.31x = 262,530.76 × 105,357.69
  4. Step 4: Simplify right side
    190,247.31x = 27,659,635,083.87
  5. Step 5: Solve for x
    x = 27,659,635,083.87/190,247.31
  6. Step 6: Final answer
    x = 145,387.78

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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.