Home / 128,846.78-193,111.09-93,429.67

Finding the Fourth Proportional to 128,846.78, 193,111.09 and 93,429.67

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Solution

The fourth proportional to 128,846.78, 193,111.09 and 93,429.67 is: 140,029.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,846.78 : 193,111.09 = 93,429.67 : x
  2. Step 2: Convert to fraction form
    128,846.78/193,111.09 = 93,429.67/x
  3. Step 3: Cross multiply
    128,846.78x = 193,111.09 × 93,429.67
  4. Step 4: Simplify right side
    128,846.78x = 18,042,305,412.04
  5. Step 5: Solve for x
    x = 18,042,305,412.04/128,846.78
  6. Step 6: Final answer
    x = 140,029.15

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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.