Home / 140,528.88-193,932.75-76,870.80

Finding the Fourth Proportional to 140,528.88, 193,932.75 and 76,870.80

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Solution

The fourth proportional to 140,528.88, 193,932.75 and 76,870.80 is: 106,083.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,528.88 : 193,932.75 = 76,870.80 : x
  2. Step 2: Convert to fraction form
    140,528.88/193,932.75 = 76,870.80/x
  3. Step 3: Cross multiply
    140,528.88x = 193,932.75 × 76,870.80
  4. Step 4: Simplify right side
    140,528.88x = 14,907,765,638.70
  5. Step 5: Solve for x
    x = 14,907,765,638.70/140,528.88
  6. Step 6: Final answer
    x = 106,083.29

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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.