Home / 193,439.42-290,065.74-81,089.46

Finding the Fourth Proportional to 193,439.42, 290,065.74 and 81,089.46

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Solution

The fourth proportional to 193,439.42, 290,065.74 and 81,089.46 is: 121,595.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,439.42 : 290,065.74 = 81,089.46 : x
  2. Step 2: Convert to fraction form
    193,439.42/290,065.74 = 81,089.46/x
  3. Step 3: Cross multiply
    193,439.42x = 290,065.74 × 81,089.46
  4. Step 4: Simplify right side
    193,439.42x = 23,521,274,221.10
  5. Step 5: Solve for x
    x = 23,521,274,221.10/193,439.42
  6. Step 6: Final answer
    x = 121,595.04

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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.