Home / 208,511.18-287,738.43-123,577.82

Finding the Fourth Proportional to 208,511.18, 287,738.43 and 123,577.82

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Solution

The fourth proportional to 208,511.18, 287,738.43 and 123,577.82 is: 170,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,511.18 : 287,738.43 = 123,577.82 : x
  2. Step 2: Convert to fraction form
    208,511.18/287,738.43 = 123,577.82/x
  3. Step 3: Cross multiply
    208,511.18x = 287,738.43 × 123,577.82
  4. Step 4: Simplify right side
    208,511.18x = 35,558,087,909.62
  5. Step 5: Solve for x
    x = 35,558,087,909.62/208,511.18
  6. Step 6: Final answer
    x = 170,533.24

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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.