Home / 190,012.66-262,153.80-109,438.57

Finding the Fourth Proportional to 190,012.66, 262,153.80 and 109,438.57

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Solution

The fourth proportional to 190,012.66, 262,153.80 and 109,438.57 is: 150,988.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,012.66 : 262,153.80 = 109,438.57 : x
  2. Step 2: Convert to fraction form
    190,012.66/262,153.80 = 109,438.57/x
  3. Step 3: Cross multiply
    190,012.66x = 262,153.80 × 109,438.57
  4. Step 4: Simplify right side
    190,012.66x = 28,689,736,992.07
  5. Step 5: Solve for x
    x = 28,689,736,992.07/190,012.66
  6. Step 6: Final answer
    x = 150,988.56

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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.