Home / 192,729.18-289,092.86-128,551.67

Finding the Fourth Proportional to 192,729.18, 289,092.86 and 128,551.67

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Solution

The fourth proportional to 192,729.18, 289,092.86 and 128,551.67 is: 192,826.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,729.18 : 289,092.86 = 128,551.67 : x
  2. Step 2: Convert to fraction form
    192,729.18/289,092.86 = 128,551.67/x
  3. Step 3: Cross multiply
    192,729.18x = 289,092.86 × 128,551.67
  4. Step 4: Simplify right side
    192,729.18x = 37,163,367,849.85
  5. Step 5: Solve for x
    x = 37,163,367,849.85/192,729.18
  6. Step 6: Final answer
    x = 192,826.89

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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.