Home / 161,291.22-222,571.50-89,669.40

Finding the Fourth Proportional to 161,291.22, 222,571.50 and 89,669.40

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Solution

The fourth proportional to 161,291.22, 222,571.50 and 89,669.40 is: 123,738.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,291.22 : 222,571.50 = 89,669.40 : x
  2. Step 2: Convert to fraction form
    161,291.22/222,571.50 = 89,669.40/x
  3. Step 3: Cross multiply
    161,291.22x = 222,571.50 × 89,669.40
  4. Step 4: Simplify right side
    161,291.22x = 19,957,852,862.10
  5. Step 5: Solve for x
    x = 19,957,852,862.10/161,291.22
  6. Step 6: Final answer
    x = 123,738.00

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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.