Home / 193,368.70-289,983.55-66,974.93

Finding the Fourth Proportional to 193,368.70, 289,983.55 and 66,974.93

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Solution

The fourth proportional to 193,368.70, 289,983.55 and 66,974.93 is: 100,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,368.70 : 289,983.55 = 66,974.93 : x
  2. Step 2: Convert to fraction form
    193,368.70/289,983.55 = 66,974.93/x
  3. Step 3: Cross multiply
    193,368.70x = 289,983.55 × 66,974.93
  4. Step 4: Simplify right side
    193,368.70x = 19,421,627,962.40
  5. Step 5: Solve for x
    x = 19,421,627,962.40/193,368.70
  6. Step 6: Final answer
    x = 100,438.32

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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.