Home / 211,376.55-291,698.10-115,881.60

Finding the Fourth Proportional to 211,376.55, 291,698.10 and 115,881.60

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Solution

The fourth proportional to 211,376.55, 291,698.10 and 115,881.60 is: 159,915.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,376.55 : 291,698.10 = 115,881.60 : x
  2. Step 2: Convert to fraction form
    211,376.55/291,698.10 = 115,881.60/x
  3. Step 3: Cross multiply
    211,376.55x = 291,698.10 × 115,881.60
  4. Step 4: Simplify right side
    211,376.55x = 33,802,442,544.96
  5. Step 5: Solve for x
    x = 33,802,442,544.96/211,376.55
  6. Step 6: Final answer
    x = 159,915.76

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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.