Home / 209,601.72-289,225.26-118,968.12

Finding the Fourth Proportional to 209,601.72, 289,225.26 and 118,968.12

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Solution

The fourth proportional to 209,601.72, 289,225.26 and 118,968.12 is: 164,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,601.72 : 289,225.26 = 118,968.12 : x
  2. Step 2: Convert to fraction form
    209,601.72/289,225.26 = 118,968.12/x
  3. Step 3: Cross multiply
    209,601.72x = 289,225.26 × 118,968.12
  4. Step 4: Simplify right side
    209,601.72x = 34,408,585,438.71
  5. Step 5: Solve for x
    x = 34,408,585,438.71/209,601.72
  6. Step 6: Final answer
    x = 164,161.75

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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.