Home / 204,386.49-281,812.10-139,886.85

Finding the Fourth Proportional to 204,386.49, 281,812.10 and 139,886.85

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Solution

The fourth proportional to 204,386.49, 281,812.10 and 139,886.85 is: 192,878.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,386.49 : 281,812.10 = 139,886.85 : x
  2. Step 2: Convert to fraction form
    204,386.49/281,812.10 = 139,886.85/x
  3. Step 3: Cross multiply
    204,386.49x = 281,812.10 × 139,886.85
  4. Step 4: Simplify right side
    204,386.49x = 39,421,806,261.45
  5. Step 5: Solve for x
    x = 39,421,806,261.45/204,386.49
  6. Step 6: Final answer
    x = 192,878.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.