Home / 161,070.77-222,388.88-100,668.58

Finding the Fourth Proportional to 161,070.77, 222,388.88 and 100,668.58

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Solution

The fourth proportional to 161,070.77, 222,388.88 and 100,668.58 is: 138,992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,070.77 : 222,388.88 = 100,668.58 : x
  2. Step 2: Convert to fraction form
    161,070.77/222,388.88 = 100,668.58/x
  3. Step 3: Cross multiply
    161,070.77x = 222,388.88 × 100,668.58
  4. Step 4: Simplify right side
    161,070.77x = 22,387,571,698.08
  5. Step 5: Solve for x
    x = 22,387,571,698.08/161,070.77
  6. Step 6: Final answer
    x = 138,992.14

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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.