Home / 205,077.70-307,616.55-111,535.30

Finding the Fourth Proportional to 205,077.70, 307,616.55 and 111,535.30

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Solution

The fourth proportional to 205,077.70, 307,616.55 and 111,535.30 is: 167,302.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,077.70 : 307,616.55 = 111,535.30 : x
  2. Step 2: Convert to fraction form
    205,077.70/307,616.55 = 111,535.30/x
  3. Step 3: Cross multiply
    205,077.70x = 307,616.55 × 111,535.30
  4. Step 4: Simplify right side
    205,077.70x = 34,310,104,189.22
  5. Step 5: Solve for x
    x = 34,310,104,189.22/205,077.70
  6. Step 6: Final answer
    x = 167,302.95

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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.