Home / 138,364.14-207,390.69-68,292.66

Finding the Fourth Proportional to 138,364.14, 207,390.69 and 68,292.66

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Solution

The fourth proportional to 138,364.14, 207,390.69 and 68,292.66 is: 102,362.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,364.14 : 207,390.69 = 68,292.66 : x
  2. Step 2: Convert to fraction form
    138,364.14/207,390.69 = 68,292.66/x
  3. Step 3: Cross multiply
    138,364.14x = 207,390.69 × 68,292.66
  4. Step 4: Simplify right side
    138,364.14x = 14,163,261,879.34
  5. Step 5: Solve for x
    x = 14,163,261,879.34/138,364.14
  6. Step 6: Final answer
    x = 102,362.23

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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.