Home / 211,142.88-291,377.25-115,651.17

Finding the Fourth Proportional to 211,142.88, 291,377.25 and 115,651.17

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Solution

The fourth proportional to 211,142.88, 291,377.25 and 115,651.17 is: 159,598.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,142.88 : 291,377.25 = 115,651.17 : x
  2. Step 2: Convert to fraction form
    211,142.88/291,377.25 = 115,651.17/x
  3. Step 3: Cross multiply
    211,142.88x = 291,377.25 × 115,651.17
  4. Step 4: Simplify right side
    211,142.88x = 33,698,119,873.88
  5. Step 5: Solve for x
    x = 33,698,119,873.88/211,142.88
  6. Step 6: Final answer
    x = 159,598.66

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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.