Home / 190,531.40-262,932.90-105,646.28

Finding the Fourth Proportional to 190,531.40, 262,932.90 and 105,646.28

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Solution

The fourth proportional to 190,531.40, 262,932.90 and 105,646.28 is: 145,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,531.40 : 262,932.90 = 105,646.28 : x
  2. Step 2: Convert to fraction form
    190,531.40/262,932.90 = 105,646.28/x
  3. Step 3: Cross multiply
    190,531.40x = 262,932.90 × 105,646.28
  4. Step 4: Simplify right side
    190,531.40x = 27,777,882,774.61
  5. Step 5: Solve for x
    x = 27,777,882,774.61/190,531.40
  6. Step 6: Final answer
    x = 145,791.63

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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.