Home / 208,186.24-312,329.12-67,945.12

Finding the Fourth Proportional to 208,186.24, 312,329.12 and 67,945.12

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Solution

The fourth proportional to 208,186.24, 312,329.12 and 67,945.12 is: 101,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,186.24 : 312,329.12 = 67,945.12 : x
  2. Step 2: Convert to fraction form
    208,186.24/312,329.12 = 67,945.12/x
  3. Step 3: Cross multiply
    208,186.24x = 312,329.12 × 67,945.12
  4. Step 4: Simplify right side
    208,186.24x = 21,221,239,537.89
  5. Step 5: Solve for x
    x = 21,221,239,537.89/208,186.24
  6. Step 6: Final answer
    x = 101,933.92

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1.5x scale

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.