Home / 211,082.71-291,291.18-115,589.38

Finding the Fourth Proportional to 211,082.71, 291,291.18 and 115,589.38

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Solution

The fourth proportional to 211,082.71, 291,291.18 and 115,589.38 is: 159,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,082.71 : 291,291.18 = 115,589.38 : x
  2. Step 2: Convert to fraction form
    211,082.71/291,291.18 = 115,589.38/x
  3. Step 3: Cross multiply
    211,082.71x = 291,291.18 × 115,589.38
  4. Step 4: Simplify right side
    211,082.71x = 33,670,166,895.67
  5. Step 5: Solve for x
    x = 33,670,166,895.67/211,082.71
  6. Step 6: Final answer
    x = 159,511.72

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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.