Home / 211,119.32-291,333.78-115,607.56

Finding the Fourth Proportional to 211,119.32, 291,333.78 and 115,607.56

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Solution

The fourth proportional to 211,119.32, 291,333.78 and 115,607.56 is: 159,532.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,119.32 : 291,333.78 = 115,607.56 : x
  2. Step 2: Convert to fraction form
    211,119.32/291,333.78 = 115,607.56/x
  3. Step 3: Cross multiply
    211,119.32x = 291,333.78 × 115,607.56
  4. Step 4: Simplify right side
    211,119.32x = 33,680,387,451.38
  5. Step 5: Solve for x
    x = 33,680,387,451.38/211,119.32
  6. Step 6: Final answer
    x = 159,532.47

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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.