Home / 161,070.29-222,388.20-100,668.08

Finding the Fourth Proportional to 161,070.29, 222,388.20 and 100,668.08

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Solution

The fourth proportional to 161,070.29, 222,388.20 and 100,668.08 is: 138,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,070.29 : 222,388.20 = 100,668.08 : x
  2. Step 2: Convert to fraction form
    161,070.29/222,388.20 = 100,668.08/x
  3. Step 3: Cross multiply
    161,070.29x = 222,388.20 × 100,668.08
  4. Step 4: Simplify right side
    161,070.29x = 22,387,393,664.63
  5. Step 5: Solve for x
    x = 22,387,393,664.63/161,070.29
  6. Step 6: Final answer
    x = 138,991.45

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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.