Home / 208,514.23-287,764.58-117,877.66

Finding the Fourth Proportional to 208,514.23, 287,764.58 and 117,877.66

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Solution

The fourth proportional to 208,514.23, 287,764.58 and 117,877.66 is: 162,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,514.23 : 287,764.58 = 117,877.66 : x
  2. Step 2: Convert to fraction form
    208,514.23/287,764.58 = 117,877.66/x
  3. Step 3: Cross multiply
    208,514.23x = 287,764.58 × 117,877.66
  4. Step 4: Simplify right side
    208,514.23x = 33,921,015,321.28
  5. Step 5: Solve for x
    x = 33,921,015,321.28/208,514.23
  6. Step 6: Final answer
    x = 162,679.62

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1.5x scale

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.