Home / 208,338.36-287,317.96-136,691.16

Finding the Fourth Proportional to 208,338.36, 287,317.96 and 136,691.16

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Solution

The fourth proportional to 208,338.36, 287,317.96 and 136,691.16 is: 188,509.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,338.36 : 287,317.96 = 136,691.16 : x
  2. Step 2: Convert to fraction form
    208,338.36/287,317.96 = 136,691.16/x
  3. Step 3: Cross multiply
    208,338.36x = 287,317.96 × 136,691.16
  4. Step 4: Simplify right side
    208,338.36x = 39,273,825,241.23
  5. Step 5: Solve for x
    x = 39,273,825,241.23/208,338.36
  6. Step 6: Final answer
    x = 188,509.81

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1.5x scale

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.