Home / 193,321.32-289,889.95-79,451.33

Finding the Fourth Proportional to 193,321.32, 289,889.95 and 79,451.33

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Solution

The fourth proportional to 193,321.32, 289,889.95 and 79,451.33 is: 119,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,321.32 : 289,889.95 = 79,451.33 : x
  2. Step 2: Convert to fraction form
    193,321.32/289,889.95 = 79,451.33/x
  3. Step 3: Cross multiply
    193,321.32x = 289,889.95 × 79,451.33
  4. Step 4: Simplify right side
    193,321.32x = 23,032,143,547.36
  5. Step 5: Solve for x
    x = 23,032,143,547.36/193,321.32
  6. Step 6: Final answer
    x = 119,139.18

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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.