Home / 209,673.11-289,352.34-119,031.75

Finding the Fourth Proportional to 209,673.11, 289,352.34 and 119,031.75

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Solution

The fourth proportional to 209,673.11, 289,352.34 and 119,031.75 is: 164,265.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,673.11 : 289,352.34 = 119,031.75 : x
  2. Step 2: Convert to fraction form
    209,673.11/289,352.34 = 119,031.75/x
  3. Step 3: Cross multiply
    209,673.11x = 289,352.34 × 119,031.75
  4. Step 4: Simplify right side
    209,673.11x = 34,442,115,396.80
  5. Step 5: Solve for x
    x = 34,442,115,396.80/209,673.11
  6. Step 6: Final answer
    x = 164,265.77

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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.