Home / 190,141.12-262,359.84-109,557.28

Finding the Fourth Proportional to 190,141.12, 262,359.84 and 109,557.28

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Solution

The fourth proportional to 190,141.12, 262,359.84 and 109,557.28 is: 151,168.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,141.12 : 262,359.84 = 109,557.28 : x
  2. Step 2: Convert to fraction form
    190,141.12/262,359.84 = 109,557.28/x
  3. Step 3: Cross multiply
    190,141.12x = 262,359.84 × 109,557.28
  4. Step 4: Simplify right side
    190,141.12x = 28,743,430,451.64
  5. Step 5: Solve for x
    x = 28,743,430,451.64/190,141.12
  6. Step 6: Final answer
    x = 151,168.93

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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.