Home / 209,941.13-314,910.45-76,830.59

Finding the Fourth Proportional to 209,941.13, 314,910.45 and 76,830.59

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Solution

The fourth proportional to 209,941.13, 314,910.45 and 76,830.59 is: 115,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,941.13 : 314,910.45 = 76,830.59 : x
  2. Step 2: Convert to fraction form
    209,941.13/314,910.45 = 76,830.59/x
  3. Step 3: Cross multiply
    209,941.13x = 314,910.45 × 76,830.59
  4. Step 4: Simplify right side
    209,941.13x = 24,194,754,096.11
  5. Step 5: Solve for x
    x = 24,194,754,096.11/209,941.13
  6. Step 6: Final answer
    x = 115,245.42

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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.