Home / 208,579.40-287,837.86-117,953.18

Finding the Fourth Proportional to 208,579.40, 287,837.86 and 117,953.18

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Solution

The fourth proportional to 208,579.40, 287,837.86 and 117,953.18 is: 162,774.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,579.40 : 287,837.86 = 117,953.18 : x
  2. Step 2: Convert to fraction form
    208,579.40/287,837.86 = 117,953.18/x
  3. Step 3: Cross multiply
    208,579.40x = 287,837.86 × 117,953.18
  4. Step 4: Simplify right side
    208,579.40x = 33,951,390,911.39
  5. Step 5: Solve for x
    x = 33,951,390,911.39/208,579.40
  6. Step 6: Final answer
    x = 162,774.42

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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.