Home / 193,039.34-289,460.27-80,688.89

Finding the Fourth Proportional to 193,039.34, 289,460.27 and 80,688.89

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Solution

The fourth proportional to 193,039.34, 289,460.27 and 80,688.89 is: 120,992.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,039.34 : 289,460.27 = 80,688.89 : x
  2. Step 2: Convert to fraction form
    193,039.34/289,460.27 = 80,688.89/x
  3. Step 3: Cross multiply
    193,039.34x = 289,460.27 × 80,688.89
  4. Step 4: Simplify right side
    193,039.34x = 23,356,226,034.65
  5. Step 5: Solve for x
    x = 23,356,226,034.65/193,039.34
  6. Step 6: Final answer
    x = 120,992.06

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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.