Home / 189,441.91-261,528.24-138,397.33

Finding the Fourth Proportional to 189,441.91, 261,528.24 and 138,397.33

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Solution

The fourth proportional to 189,441.91, 261,528.24 and 138,397.33 is: 191,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,441.91 : 261,528.24 = 138,397.33 : x
  2. Step 2: Convert to fraction form
    189,441.91/261,528.24 = 138,397.33/x
  3. Step 3: Cross multiply
    189,441.91x = 261,528.24 × 138,397.33
  4. Step 4: Simplify right side
    189,441.91x = 36,194,810,135.60
  5. Step 5: Solve for x
    x = 36,194,810,135.60/189,441.91
  6. Step 6: Final answer
    x = 191,060.20

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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.