Home / 161,027.60-222,211.35-89,403.35

Finding the Fourth Proportional to 161,027.60, 222,211.35 and 89,403.35

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Solution

The fourth proportional to 161,027.60, 222,211.35 and 89,403.35 is: 123,372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,027.60 : 222,211.35 = 89,403.35 : x
  2. Step 2: Convert to fraction form
    161,027.60/222,211.35 = 89,403.35/x
  3. Step 3: Cross multiply
    161,027.60x = 222,211.35 × 89,403.35
  4. Step 4: Simplify right side
    161,027.60x = 19,866,437,986.97
  5. Step 5: Solve for x
    x = 19,866,437,986.97/161,027.60
  6. Step 6: Final answer
    x = 123,372.88

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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.