Home / 193,018.14-289,539.90-66,670.56

Finding the Fourth Proportional to 193,018.14, 289,539.90 and 66,670.56

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Solution

The fourth proportional to 193,018.14, 289,539.90 and 66,670.56 is: 100,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,018.14 : 289,539.90 = 66,670.56 : x
  2. Step 2: Convert to fraction form
    193,018.14/289,539.90 = 66,670.56/x
  3. Step 3: Cross multiply
    193,018.14x = 289,539.90 × 66,670.56
  4. Step 4: Simplify right side
    193,018.14x = 19,303,787,275.34
  5. Step 5: Solve for x
    x = 19,303,787,275.34/193,018.14
  6. Step 6: Final answer
    x = 100,010.22

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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.