Home / 211,143.27-291,377.76-115,653.39

Finding the Fourth Proportional to 211,143.27, 291,377.76 and 115,653.39

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Solution

The fourth proportional to 211,143.27, 291,377.76 and 115,653.39 is: 159,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,143.27 : 291,377.76 = 115,653.39 : x
  2. Step 2: Convert to fraction form
    211,143.27/291,377.76 = 115,653.39/x
  3. Step 3: Cross multiply
    211,143.27x = 291,377.76 × 115,653.39
  4. Step 4: Simplify right side
    211,143.27x = 33,698,825,714.61
  5. Step 5: Solve for x
    x = 33,698,825,714.61/211,143.27
  6. Step 6: Final answer
    x = 159,601.70

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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.