Home / 208,361.23-287,537.55-112,868.17

Finding the Fourth Proportional to 208,361.23, 287,537.55 and 112,868.17

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Solution

The fourth proportional to 208,361.23, 287,537.55 and 112,868.17 is: 155,757.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,361.23 : 287,537.55 = 112,868.17 : x
  2. Step 2: Convert to fraction form
    208,361.23/287,537.55 = 112,868.17/x
  3. Step 3: Cross multiply
    208,361.23x = 287,537.55 × 112,868.17
  4. Step 4: Simplify right side
    208,361.23x = 32,453,835,932.68
  5. Step 5: Solve for x
    x = 32,453,835,932.68/208,361.23
  6. Step 6: Final answer
    x = 155,757.56

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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.