Home / 140,490.90-193,877.37-76,828.73

Finding the Fourth Proportional to 140,490.90, 193,877.37 and 76,828.73

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Solution

The fourth proportional to 140,490.90, 193,877.37 and 76,828.73 is: 106,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,490.90 : 193,877.37 = 76,828.73 : x
  2. Step 2: Convert to fraction form
    140,490.90/193,877.37 = 76,828.73/x
  3. Step 3: Cross multiply
    140,490.90x = 193,877.37 × 76,828.73
  4. Step 4: Simplify right side
    140,490.90x = 14,895,351,143.45
  5. Step 5: Solve for x
    x = 14,895,351,143.45/140,490.90
  6. Step 6: Final answer
    x = 106,023.60

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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.