Home / 151,765.16-209,436.37-82,854.73

Finding the Fourth Proportional to 151,765.16, 209,436.37 and 82,854.73

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Solution

The fourth proportional to 151,765.16, 209,436.37 and 82,854.73 is: 114,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,765.16 : 209,436.37 = 82,854.73 : x
  2. Step 2: Convert to fraction form
    151,765.16/209,436.37 = 82,854.73/x
  3. Step 3: Cross multiply
    151,765.16x = 209,436.37 × 82,854.73
  4. Step 4: Simplify right side
    151,765.16x = 17,352,793,943.19
  5. Step 5: Solve for x
    x = 17,352,793,943.19/151,765.16
  6. Step 6: Final answer
    x = 114,339.78

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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.