Home / 190,422.34-262,783.04-105,539.47

Finding the Fourth Proportional to 190,422.34, 262,783.04 and 105,539.47

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Solution

The fourth proportional to 190,422.34, 262,783.04 and 105,539.47 is: 145,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,422.34 : 262,783.04 = 105,539.47 : x
  2. Step 2: Convert to fraction form
    190,422.34/262,783.04 = 105,539.47/x
  3. Step 3: Cross multiply
    190,422.34x = 262,783.04 × 105,539.47
  4. Step 4: Simplify right side
    190,422.34x = 27,733,982,766.59
  5. Step 5: Solve for x
    x = 27,733,982,766.59/190,422.34
  6. Step 6: Final answer
    x = 145,644.59

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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.