Home / 193,285.24-289,858.40-66,891.18

Finding the Fourth Proportional to 193,285.24, 289,858.40 and 66,891.18

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Solution

The fourth proportional to 193,285.24, 289,858.40 and 66,891.18 is: 100,312.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,285.24 : 289,858.40 = 66,891.18 : x
  2. Step 2: Convert to fraction form
    193,285.24/289,858.40 = 66,891.18/x
  3. Step 3: Cross multiply
    193,285.24x = 289,858.40 × 66,891.18
  4. Step 4: Simplify right side
    193,285.24x = 19,388,971,412.27
  5. Step 5: Solve for x
    x = 19,388,971,412.27/193,285.24
  6. Step 6: Final answer
    x = 100,312.74

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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.