Home / 211,158.14-291,405.75-115,668.86

Finding the Fourth Proportional to 211,158.14, 291,405.75 and 115,668.86

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Solution

The fourth proportional to 211,158.14, 291,405.75 and 115,668.86 is: 159,627.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,158.14 : 291,405.75 = 115,668.86 : x
  2. Step 2: Convert to fraction form
    211,158.14/291,405.75 = 115,668.86/x
  3. Step 3: Cross multiply
    211,158.14x = 291,405.75 × 115,668.86
  4. Step 4: Simplify right side
    211,158.14x = 33,706,570,899.95
  5. Step 5: Solve for x
    x = 33,706,570,899.95/211,158.14
  6. Step 6: Final answer
    x = 159,627.14

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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.