Home / 207,768.34-312,302.69-137,144.95

Finding the Fourth Proportional to 207,768.34, 312,302.69 and 137,144.95

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Solution

The fourth proportional to 207,768.34, 312,302.69 and 137,144.95 is: 206,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,768.34 : 312,302.69 = 137,144.95 : x
  2. Step 2: Convert to fraction form
    207,768.34/312,302.69 = 137,144.95/x
  3. Step 3: Cross multiply
    207,768.34x = 312,302.69 × 137,144.95
  4. Step 4: Simplify right side
    207,768.34x = 42,830,735,852.73
  5. Step 5: Solve for x
    x = 42,830,735,852.73/207,768.34
  6. Step 6: Final answer
    x = 206,146.59

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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.