Home / 161,285.22-222,563.21-89,663.40

Finding the Fourth Proportional to 161,285.22, 222,563.21 and 89,663.40

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Solution

The fourth proportional to 161,285.22, 222,563.21 and 89,663.40 is: 123,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,285.22 : 222,563.21 = 89,663.40 : x
  2. Step 2: Convert to fraction form
    161,285.22/222,563.21 = 89,663.40/x
  3. Step 3: Cross multiply
    161,285.22x = 222,563.21 × 89,663.40
  4. Step 4: Simplify right side
    161,285.22x = 19,955,773,675.20
  5. Step 5: Solve for x
    x = 19,955,773,675.20/161,285.22
  6. Step 6: Final answer
    x = 123,729.71

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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.