Home / 209,209.42-288,709.68-113,716.50

Finding the Fourth Proportional to 209,209.42, 288,709.68 and 113,716.50

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Solution

The fourth proportional to 209,209.42, 288,709.68 and 113,716.50 is: 156,929.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,209.42 : 288,709.68 = 113,716.50 : x
  2. Step 2: Convert to fraction form
    209,209.42/288,709.68 = 113,716.50/x
  3. Step 3: Cross multiply
    209,209.42x = 288,709.68 × 113,716.50
  4. Step 4: Simplify right side
    209,209.42x = 32,831,054,325.72
  5. Step 5: Solve for x
    x = 32,831,054,325.72/209,209.42
  6. Step 6: Final answer
    x = 156,929.14

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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.