Home / 161,406.48-222,715.26-89,786.28

Finding the Fourth Proportional to 161,406.48, 222,715.26 and 89,786.28

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Solution

The fourth proportional to 161,406.48, 222,715.26 and 89,786.28 is: 123,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,406.48 : 222,715.26 = 89,786.28 : x
  2. Step 2: Convert to fraction form
    161,406.48/222,715.26 = 89,786.28/x
  3. Step 3: Cross multiply
    161,406.48x = 222,715.26 × 89,786.28
  4. Step 4: Simplify right side
    161,406.48x = 19,996,774,694.63
  5. Step 5: Solve for x
    x = 19,996,774,694.63/161,406.48
  6. Step 6: Final answer
    x = 123,890.78

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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.