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Finding the Fourth Proportional to 209,950.70, 314,926.05 and 125,969.90

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Solution

The fourth proportional to 209,950.70, 314,926.05 and 125,969.90 is: 188,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,950.70 : 314,926.05 = 125,969.90 : x
  2. Step 2: Convert to fraction form
    209,950.70/314,926.05 = 125,969.90/x
  3. Step 3: Cross multiply
    209,950.70x = 314,926.05 × 125,969.90
  4. Step 4: Simplify right side
    209,950.70x = 39,671,203,025.90
  5. Step 5: Solve for x
    x = 39,671,203,025.90/209,950.70
  6. Step 6: Final answer
    x = 188,954.85

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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.