Home / 124,524.90-186,786.72-74,619.90

Finding the Fourth Proportional to 124,524.90, 186,786.72 and 74,619.90

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Solution

The fourth proportional to 124,524.90, 186,786.72 and 74,619.90 is: 111,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,524.90 : 186,786.72 = 74,619.90 : x
  2. Step 2: Convert to fraction form
    124,524.90/186,786.72 = 74,619.90/x
  3. Step 3: Cross multiply
    124,524.90x = 186,786.72 × 74,619.90
  4. Step 4: Simplify right side
    124,524.90x = 13,938,006,367.73
  5. Step 5: Solve for x
    x = 13,938,006,367.73/124,524.90
  6. Step 6: Final answer
    x = 111,929.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.