Home / 161,528.37-222,909.15-89,906.85

Finding the Fourth Proportional to 161,528.37, 222,909.15 and 89,906.85

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Solution

The fourth proportional to 161,528.37, 222,909.15 and 89,906.85 is: 124,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,528.37 : 222,909.15 = 89,906.85 : x
  2. Step 2: Convert to fraction form
    161,528.37/222,909.15 = 89,906.85/x
  3. Step 3: Cross multiply
    161,528.37x = 222,909.15 × 89,906.85
  4. Step 4: Simplify right side
    161,528.37x = 20,041,059,512.68
  5. Step 5: Solve for x
    x = 20,041,059,512.68/161,528.37
  6. Step 6: Final answer
    x = 124,071.45

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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.