Home / 140,288.73-193,592.82-76,628.81

Finding the Fourth Proportional to 140,288.73, 193,592.82 and 76,628.81

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Solution

The fourth proportional to 140,288.73, 193,592.82 and 76,628.81 is: 105,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,288.73 : 193,592.82 = 76,628.81 : x
  2. Step 2: Convert to fraction form
    140,288.73/193,592.82 = 76,628.81/x
  3. Step 3: Cross multiply
    140,288.73x = 193,592.82 × 76,628.81
  4. Step 4: Simplify right side
    140,288.73x = 14,834,786,453.18
  5. Step 5: Solve for x
    x = 14,834,786,453.18/140,288.73
  6. Step 6: Final answer
    x = 105,744.68

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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.