Home / 190,907.10-263,435.67-115,451.10

Finding the Fourth Proportional to 190,907.10, 263,435.67 and 115,451.10

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Solution

The fourth proportional to 190,907.10, 263,435.67 and 115,451.10 is: 159,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,907.10 : 263,435.67 = 115,451.10 : x
  2. Step 2: Convert to fraction form
    190,907.10/263,435.67 = 115,451.10/x
  3. Step 3: Cross multiply
    190,907.10x = 263,435.67 × 115,451.10
  4. Step 4: Simplify right side
    190,907.10x = 30,413,937,880.74
  5. Step 5: Solve for x
    x = 30,413,937,880.74/190,907.10
  6. Step 6: Final answer
    x = 159,312.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.