Home / 190,127.28-262,403.28-109,539.12

Finding the Fourth Proportional to 190,127.28, 262,403.28 and 109,539.12

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Solution

The fourth proportional to 190,127.28, 262,403.28 and 109,539.12 is: 151,179.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,127.28 : 262,403.28 = 109,539.12 : x
  2. Step 2: Convert to fraction form
    190,127.28/262,403.28 = 109,539.12/x
  3. Step 3: Cross multiply
    190,127.28x = 262,403.28 × 109,539.12
  4. Step 4: Simplify right side
    190,127.28x = 28,743,424,376.31
  5. Step 5: Solve for x
    x = 28,743,424,376.31/190,127.28
  6. Step 6: Final answer
    x = 151,179.91

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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.