Home / 151,511.73-209,077.14-83,531.57

Finding the Fourth Proportional to 151,511.73, 209,077.14 and 83,531.57

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Solution

The fourth proportional to 151,511.73, 209,077.14 and 83,531.57 is: 115,268.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,511.73 : 209,077.14 = 83,531.57 : x
  2. Step 2: Convert to fraction form
    151,511.73/209,077.14 = 83,531.57/x
  3. Step 3: Cross multiply
    151,511.73x = 209,077.14 × 83,531.57
  4. Step 4: Simplify right side
    151,511.73x = 17,464,540,709.92
  5. Step 5: Solve for x
    x = 17,464,540,709.92/151,511.73
  6. Step 6: Final answer
    x = 115,268.57

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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.