Home / 189,528.32-261,549.04-108,971.60

Finding the Fourth Proportional to 189,528.32, 261,549.04 and 108,971.60

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Solution

The fourth proportional to 189,528.32, 261,549.04 and 108,971.60 is: 150,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,528.32 : 261,549.04 = 108,971.60 : x
  2. Step 2: Convert to fraction form
    189,528.32/261,549.04 = 108,971.60/x
  3. Step 3: Cross multiply
    189,528.32x = 261,549.04 × 108,971.60
  4. Step 4: Simplify right side
    189,528.32x = 28,501,417,367.26
  5. Step 5: Solve for x
    x = 28,501,417,367.26/189,528.32
  6. Step 6: Final answer
    x = 150,380.78

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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.