Home / 193,016.30-289,407.59-86,380.41

Finding the Fourth Proportional to 193,016.30, 289,407.59 and 86,380.41

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Solution

The fourth proportional to 193,016.30, 289,407.59 and 86,380.41 is: 129,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,016.30 : 289,407.59 = 86,380.41 : x
  2. Step 2: Convert to fraction form
    193,016.30/289,407.59 = 86,380.41/x
  3. Step 3: Cross multiply
    193,016.30x = 289,407.59 × 86,380.41
  4. Step 4: Simplify right side
    193,016.30x = 24,999,145,080.96
  5. Step 5: Solve for x
    x = 24,999,145,080.96/193,016.30
  6. Step 6: Final answer
    x = 129,518.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.