Home / 211,392.63-291,724.70-115,899.12

Finding the Fourth Proportional to 211,392.63, 291,724.70 and 115,899.12

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Solution

The fourth proportional to 211,392.63, 291,724.70 and 115,899.12 is: 159,942.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,392.63 : 291,724.70 = 115,899.12 : x
  2. Step 2: Convert to fraction form
    211,392.63/291,724.70 = 115,899.12/x
  3. Step 3: Cross multiply
    211,392.63x = 291,724.70 × 115,899.12
  4. Step 4: Simplify right side
    211,392.63x = 33,810,635,432.77
  5. Step 5: Solve for x
    x = 33,810,635,432.77/211,392.63
  6. Step 6: Final answer
    x = 159,942.36

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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.