Home / 151,539.32-209,170.14-87,892.76

Finding the Fourth Proportional to 151,539.32, 209,170.14 and 87,892.76

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Solution

The fourth proportional to 151,539.32, 209,170.14 and 87,892.76 is: 121,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,539.32 : 209,170.14 = 87,892.76 : x
  2. Step 2: Convert to fraction form
    151,539.32/209,170.14 = 87,892.76/x
  3. Step 3: Cross multiply
    151,539.32x = 209,170.14 × 87,892.76
  4. Step 4: Simplify right side
    151,539.32x = 18,384,540,914.19
  5. Step 5: Solve for x
    x = 18,384,540,914.19/151,539.32
  6. Step 6: Final answer
    x = 121,318.62

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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.