Home / 139,910.85-209,740.32-51,102.05

Finding the Fourth Proportional to 139,910.85, 209,740.32 and 51,102.05

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Solution

The fourth proportional to 139,910.85, 209,740.32 and 51,102.05 is: 76,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,910.85 : 209,740.32 = 51,102.05 : x
  2. Step 2: Convert to fraction form
    139,910.85/209,740.32 = 51,102.05/x
  3. Step 3: Cross multiply
    139,910.85x = 209,740.32 × 51,102.05
  4. Step 4: Simplify right side
    139,910.85x = 10,718,159,270.95
  5. Step 5: Solve for x
    x = 10,718,159,270.95/139,910.85
  6. Step 6: Final answer
    x = 76,607.06

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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.