Home / 193,290.24-289,865.88-66,896.20

Finding the Fourth Proportional to 193,290.24, 289,865.88 and 66,896.20

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Solution

The fourth proportional to 193,290.24, 289,865.88 and 66,896.20 is: 100,320.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,290.24 : 289,865.88 = 66,896.20 : x
  2. Step 2: Convert to fraction form
    193,290.24/289,865.88 = 66,896.20/x
  3. Step 3: Cross multiply
    193,290.24x = 289,865.88 × 66,896.20
  4. Step 4: Simplify right side
    193,290.24x = 19,390,925,881.66
  5. Step 5: Solve for x
    x = 19,390,925,881.66/193,290.24
  6. Step 6: Final answer
    x = 100,320.25

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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.