Home / 161,802.83-222,779.77-137,556.09

Finding the Fourth Proportional to 161,802.83, 222,779.77 and 137,556.09

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Solution

The fourth proportional to 161,802.83, 222,779.77 and 137,556.09 is: 189,395.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,802.83 : 222,779.77 = 137,556.09 : x
  2. Step 2: Convert to fraction form
    161,802.83/222,779.77 = 137,556.09/x
  3. Step 3: Cross multiply
    161,802.83x = 222,779.77 × 137,556.09
  4. Step 4: Simplify right side
    161,802.83x = 30,644,713,748.41
  5. Step 5: Solve for x
    x = 30,644,713,748.41/161,802.83
  6. Step 6: Final answer
    x = 189,395.41

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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.