Home / 144,489.18-199,387.04-80,814.67

Finding the Fourth Proportional to 144,489.18, 199,387.04 and 80,814.67

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Solution

The fourth proportional to 144,489.18, 199,387.04 and 80,814.67 is: 111,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,489.18 : 199,387.04 = 80,814.67 : x
  2. Step 2: Convert to fraction form
    144,489.18/199,387.04 = 80,814.67/x
  3. Step 3: Cross multiply
    144,489.18x = 199,387.04 × 80,814.67
  4. Step 4: Simplify right side
    144,489.18x = 16,113,397,839.88
  5. Step 5: Solve for x
    x = 16,113,397,839.88/144,489.18
  6. Step 6: Final answer
    x = 111,519.75

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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.