Home / 193,164.12-289,828.80-80,870.58

Finding the Fourth Proportional to 193,164.12, 289,828.80 and 80,870.58

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Solution

The fourth proportional to 193,164.12, 289,828.80 and 80,870.58 is: 121,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,164.12 : 289,828.80 = 80,870.58 : x
  2. Step 2: Convert to fraction form
    193,164.12/289,828.80 = 80,870.58/x
  3. Step 3: Cross multiply
    193,164.12x = 289,828.80 × 80,870.58
  4. Step 4: Simplify right side
    193,164.12x = 23,438,623,156.70
  5. Step 5: Solve for x
    x = 23,438,623,156.70/193,164.12
  6. Step 6: Final answer
    x = 121,340.46

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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.