Home / 205,764.74-308,366.70-99,141.02

Finding the Fourth Proportional to 205,764.74, 308,366.70 and 99,141.02

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Solution

The fourth proportional to 205,764.74, 308,366.70 and 99,141.02 is: 148,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,764.74 : 308,366.70 = 99,141.02 : x
  2. Step 2: Convert to fraction form
    205,764.74/308,366.70 = 99,141.02/x
  3. Step 3: Cross multiply
    205,764.74x = 308,366.70 × 99,141.02
  4. Step 4: Simplify right side
    205,764.74x = 30,571,789,172.03
  5. Step 5: Solve for x
    x = 30,571,789,172.03/205,764.74
  6. Step 6: Final answer
    x = 148,576.42

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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.