Home / 211,481.34-291,845.69-115,988.72

Finding the Fourth Proportional to 211,481.34, 291,845.69 and 115,988.72

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Solution

The fourth proportional to 211,481.34, 291,845.69 and 115,988.72 is: 160,065.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,481.34 : 291,845.69 = 115,988.72 : x
  2. Step 2: Convert to fraction form
    211,481.34/291,845.69 = 115,988.72/x
  3. Step 3: Cross multiply
    211,481.34x = 291,845.69 × 115,988.72
  4. Step 4: Simplify right side
    211,481.34x = 33,850,808,710.47
  5. Step 5: Solve for x
    x = 33,850,808,710.47/211,481.34
  6. Step 6: Final answer
    x = 160,065.23

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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.