Home / 193,238.65-289,877.85-66,878.67

Finding the Fourth Proportional to 193,238.65, 289,877.85 and 66,878.67

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Solution

The fourth proportional to 193,238.65, 289,877.85 and 66,878.67 is: 100,324.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,238.65 : 289,877.85 = 66,878.67 : x
  2. Step 2: Convert to fraction form
    193,238.65/289,877.85 = 66,878.67/x
  3. Step 3: Cross multiply
    193,238.65x = 289,877.85 × 66,878.67
  4. Step 4: Simplify right side
    193,238.65x = 19,386,645,070.46
  5. Step 5: Solve for x
    x = 19,386,645,070.46/193,238.65
  6. Step 6: Final answer
    x = 100,324.88

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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.