Home / 208,626.57-287,781.32-133,175.07

Finding the Fourth Proportional to 208,626.57, 287,781.32 and 133,175.07

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Solution

The fourth proportional to 208,626.57, 287,781.32 and 133,175.07 is: 183,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,626.57 : 287,781.32 = 133,175.07 : x
  2. Step 2: Convert to fraction form
    208,626.57/287,781.32 = 133,175.07/x
  3. Step 3: Cross multiply
    208,626.57x = 287,781.32 × 133,175.07
  4. Step 4: Simplify right side
    208,626.57x = 38,325,297,768.63
  5. Step 5: Solve for x
    x = 38,325,297,768.63/208,626.57
  6. Step 6: Final answer
    x = 183,702.86

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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.