Home / 190,431.72-262,791.30-109,859.40

Finding the Fourth Proportional to 190,431.72, 262,791.30 and 109,859.40

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Solution

The fourth proportional to 190,431.72, 262,791.30 and 109,859.40 is: 151,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,431.72 : 262,791.30 = 109,859.40 : x
  2. Step 2: Convert to fraction form
    190,431.72/262,791.30 = 109,859.40/x
  3. Step 3: Cross multiply
    190,431.72x = 262,791.30 × 109,859.40
  4. Step 4: Simplify right side
    190,431.72x = 28,870,094,543.22
  5. Step 5: Solve for x
    x = 28,870,094,543.22/190,431.72
  6. Step 6: Final answer
    x = 151,603.39

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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.