Home / 189,440.91-261,526.86-138,396.33

Finding the Fourth Proportional to 189,440.91, 261,526.86 and 138,396.33

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Solution

The fourth proportional to 189,440.91, 261,526.86 and 138,396.33 is: 191,058.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,440.91 : 261,526.86 = 138,396.33 : x
  2. Step 2: Convert to fraction form
    189,440.91/261,526.86 = 138,396.33/x
  3. Step 3: Cross multiply
    189,440.91x = 261,526.86 × 138,396.33
  4. Step 4: Simplify right side
    189,440.91x = 36,194,357,620.42
  5. Step 5: Solve for x
    x = 36,194,357,620.42/189,440.91
  6. Step 6: Final answer
    x = 191,058.82

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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.