Home / 208,321.11-287,500.80-117,693.69

Finding the Fourth Proportional to 208,321.11, 287,500.80 and 117,693.69

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Solution

The fourth proportional to 208,321.11, 287,500.80 and 117,693.69 is: 162,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,321.11 : 287,500.80 = 117,693.69 : x
  2. Step 2: Convert to fraction form
    208,321.11/287,500.80 = 117,693.69/x
  3. Step 3: Cross multiply
    208,321.11x = 287,500.80 × 117,693.69
  4. Step 4: Simplify right side
    208,321.11x = 33,837,030,029.95
  5. Step 5: Solve for x
    x = 33,837,030,029.95/208,321.11
  6. Step 6: Final answer
    x = 162,427.27

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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.