Home / 208,339.36-287,319.34-136,692.16

Finding the Fourth Proportional to 208,339.36, 287,319.34 and 136,692.16

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Solution

The fourth proportional to 208,339.36, 287,319.34 and 136,692.16 is: 188,511.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,339.36 : 287,319.34 = 136,692.16 : x
  2. Step 2: Convert to fraction form
    208,339.36/287,319.34 = 136,692.16/x
  3. Step 3: Cross multiply
    208,339.36x = 287,319.34 × 136,692.16
  4. Step 4: Simplify right side
    208,339.36x = 39,274,301,194.37
  5. Step 5: Solve for x
    x = 39,274,301,194.37/208,339.36
  6. Step 6: Final answer
    x = 188,511.19

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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.