Home / 139,747.26-209,624.37-51,000.75

Finding the Fourth Proportional to 139,747.26, 209,624.37 and 51,000.75

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Solution

The fourth proportional to 139,747.26, 209,624.37 and 51,000.75 is: 76,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,747.26 : 209,624.37 = 51,000.75 : x
  2. Step 2: Convert to fraction form
    139,747.26/209,624.37 = 51,000.75/x
  3. Step 3: Cross multiply
    139,747.26x = 209,624.37 × 51,000.75
  4. Step 4: Simplify right side
    139,747.26x = 10,691,000,088.28
  5. Step 5: Solve for x
    x = 10,691,000,088.28/139,747.26
  6. Step 6: Final answer
    x = 76,502.40

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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.