Home / 208,077.45-287,147.87-117,437.24

Finding the Fourth Proportional to 208,077.45, 287,147.87 and 117,437.24

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Solution

The fourth proportional to 208,077.45, 287,147.87 and 117,437.24 is: 162,063.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,077.45 : 287,147.87 = 117,437.24 : x
  2. Step 2: Convert to fraction form
    208,077.45/287,147.87 = 117,437.24/x
  3. Step 3: Cross multiply
    208,077.45x = 287,147.87 × 117,437.24
  4. Step 4: Simplify right side
    208,077.45x = 33,721,853,324.68
  5. Step 5: Solve for x
    x = 33,721,853,324.68/208,077.45
  6. Step 6: Final answer
    x = 162,063.95

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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.