Home / 140,489.39-210,736.07-45,720.07

Finding the Fourth Proportional to 140,489.39, 210,736.07 and 45,720.07

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Solution

The fourth proportional to 140,489.39, 210,736.07 and 45,720.07 is: 68,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,489.39 : 210,736.07 = 45,720.07 : x
  2. Step 2: Convert to fraction form
    140,489.39/210,736.07 = 45,720.07/x
  3. Step 3: Cross multiply
    140,489.39x = 210,736.07 × 45,720.07
  4. Step 4: Simplify right side
    140,489.39x = 9,634,867,871.92
  5. Step 5: Solve for x
    x = 9,634,867,871.92/140,489.39
  6. Step 6: Final answer
    x = 68,580.75

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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.