Home / 161,561.07-222,959.40-101,112.39

Finding the Fourth Proportional to 161,561.07, 222,959.40 and 101,112.39

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Solution

The fourth proportional to 161,561.07, 222,959.40 and 101,112.39 is: 139,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,561.07 : 222,959.40 = 101,112.39 : x
  2. Step 2: Convert to fraction form
    161,561.07/222,959.40 = 101,112.39/x
  3. Step 3: Cross multiply
    161,561.07x = 222,959.40 × 101,112.39
  4. Step 4: Simplify right side
    161,561.07x = 22,543,957,806.97
  5. Step 5: Solve for x
    x = 22,543,957,806.97/161,561.07
  6. Step 6: Final answer
    x = 139,538.30

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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.