Home / 154,932.50-213,811.09-86,953.69

Finding the Fourth Proportional to 154,932.50, 213,811.09 and 86,953.69

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Solution

The fourth proportional to 154,932.50, 213,811.09 and 86,953.69 is: 119,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,932.50 : 213,811.09 = 86,953.69 : x
  2. Step 2: Convert to fraction form
    154,932.50/213,811.09 = 86,953.69/x
  3. Step 3: Cross multiply
    154,932.50x = 213,811.09 × 86,953.69
  4. Step 4: Simplify right side
    154,932.50x = 18,591,661,951.98
  5. Step 5: Solve for x
    x = 18,591,661,951.98/154,932.50
  6. Step 6: Final answer
    x = 119,998.47

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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.