Home / 140,451.63-193,823.31-76,789.95

Finding the Fourth Proportional to 140,451.63, 193,823.31 and 76,789.95

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Solution

The fourth proportional to 140,451.63, 193,823.31 and 76,789.95 is: 105,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,451.63 : 193,823.31 = 76,789.95 : x
  2. Step 2: Convert to fraction form
    140,451.63/193,823.31 = 76,789.95/x
  3. Step 3: Cross multiply
    140,451.63x = 193,823.31 × 76,789.95
  4. Step 4: Simplify right side
    140,451.63x = 14,883,682,283.73
  5. Step 5: Solve for x
    x = 14,883,682,283.73/140,451.63
  6. Step 6: Final answer
    x = 105,970.16

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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.