Home / 190,217.72-262,478.12-109,644.32

Finding the Fourth Proportional to 190,217.72, 262,478.12 and 109,644.32

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Solution

The fourth proportional to 190,217.72, 262,478.12 and 109,644.32 is: 151,296.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,217.72 : 262,478.12 = 109,644.32 : x
  2. Step 2: Convert to fraction form
    190,217.72/262,478.12 = 109,644.32/x
  3. Step 3: Cross multiply
    190,217.72x = 262,478.12 × 109,644.32
  4. Step 4: Simplify right side
    190,217.72x = 28,779,234,982.28
  5. Step 5: Solve for x
    x = 28,779,234,982.28/190,217.72
  6. Step 6: Final answer
    x = 151,296.29

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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.