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Finding the Fourth Proportional to 189,088.60, 260,954.58 and 108,542.20

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Solution

The fourth proportional to 189,088.60, 260,954.58 and 108,542.20 is: 149,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,088.60 : 260,954.58 = 108,542.20 : x
  2. Step 2: Convert to fraction form
    189,088.60/260,954.58 = 108,542.20/x
  3. Step 3: Cross multiply
    189,088.60x = 260,954.58 × 108,542.20
  4. Step 4: Simplify right side
    189,088.60x = 28,324,584,213.28
  5. Step 5: Solve for x
    x = 28,324,584,213.28/189,088.60
  6. Step 6: Final answer
    x = 149,795.30

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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.