Home / 211,126.32-291,361.32-115,638.30

Finding the Fourth Proportional to 211,126.32, 291,361.32 and 115,638.30

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Solution

The fourth proportional to 211,126.32, 291,361.32 and 115,638.30 is: 159,584.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,126.32 : 291,361.32 = 115,638.30 : x
  2. Step 2: Convert to fraction form
    211,126.32/291,361.32 = 115,638.30/x
  3. Step 3: Cross multiply
    211,126.32x = 291,361.32 × 115,638.30
  4. Step 4: Simplify right side
    211,126.32x = 33,692,527,730.56
  5. Step 5: Solve for x
    x = 33,692,527,730.56/211,126.32
  6. Step 6: Final answer
    x = 159,584.69

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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.