Home / 190,078.16-262,311.36-105,203.12

Finding the Fourth Proportional to 190,078.16, 262,311.36 and 105,203.12

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Solution

The fourth proportional to 190,078.16, 262,311.36 and 105,203.12 is: 145,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,078.16 : 262,311.36 = 105,203.12 : x
  2. Step 2: Convert to fraction form
    190,078.16/262,311.36 = 105,203.12/x
  3. Step 3: Cross multiply
    190,078.16x = 262,311.36 × 105,203.12
  4. Step 4: Simplify right side
    190,078.16x = 27,595,973,483.44
  5. Step 5: Solve for x
    x = 27,595,973,483.44/190,078.16
  6. Step 6: Final answer
    x = 145,182.24

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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.