Home / 192,811.05-289,216.58-129,825.45

Finding the Fourth Proportional to 192,811.05, 289,216.58 and 129,825.45

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Solution

The fourth proportional to 192,811.05, 289,216.58 and 129,825.45 is: 194,738.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,811.05 : 289,216.58 = 129,825.45 : x
  2. Step 2: Convert to fraction form
    192,811.05/289,216.58 = 129,825.45/x
  3. Step 3: Cross multiply
    192,811.05x = 289,216.58 × 129,825.45
  4. Step 4: Simplify right side
    192,811.05x = 37,547,671,996.83
  5. Step 5: Solve for x
    x = 37,547,671,996.83/192,811.05
  6. Step 6: Final answer
    x = 194,738.18

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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.