Home / 127,682.40-191,523.60-107,999.40

Finding the Fourth Proportional to 127,682.40, 191,523.60 and 107,999.40

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Solution

The fourth proportional to 127,682.40, 191,523.60 and 107,999.40 is: 161,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,682.40 : 191,523.60 = 107,999.40 : x
  2. Step 2: Convert to fraction form
    127,682.40/191,523.60 = 107,999.40/x
  3. Step 3: Cross multiply
    127,682.40x = 191,523.60 × 107,999.40
  4. Step 4: Simplify right side
    127,682.40x = 20,684,433,885.84
  5. Step 5: Solve for x
    x = 20,684,433,885.84/127,682.40
  6. Step 6: Final answer
    x = 161,999.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.