Home / 139,962.67-209,984.97-45,191.05

Finding the Fourth Proportional to 139,962.67, 209,984.97 and 45,191.05

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Solution

The fourth proportional to 139,962.67, 209,984.97 and 45,191.05 is: 67,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,962.67 : 209,984.97 = 45,191.05 : x
  2. Step 2: Convert to fraction form
    139,962.67/209,984.97 = 45,191.05/x
  3. Step 3: Cross multiply
    139,962.67x = 209,984.97 × 45,191.05
  4. Step 4: Simplify right side
    139,962.67x = 9,489,440,923.02
  5. Step 5: Solve for x
    x = 9,489,440,923.02/139,962.67
  6. Step 6: Final answer
    x = 67,799.80

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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.