Home / 205,101.10-307,518.07-85,124.98

Finding the Fourth Proportional to 205,101.10, 307,518.07 and 85,124.98

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Solution

The fourth proportional to 205,101.10, 307,518.07 and 85,124.98 is: 127,632.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,101.10 : 307,518.07 = 85,124.98 : x
  2. Step 2: Convert to fraction form
    205,101.10/307,518.07 = 85,124.98/x
  3. Step 3: Cross multiply
    205,101.10x = 307,518.07 × 85,124.98
  4. Step 4: Simplify right side
    205,101.10x = 26,177,469,558.39
  5. Step 5: Solve for x
    x = 26,177,469,558.39/205,101.10
  6. Step 6: Final answer
    x = 127,632.03

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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.