Home / 209,869.90-289,613.12-114,374.68

Finding the Fourth Proportional to 209,869.90, 289,613.12 and 114,374.68

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Solution

The fourth proportional to 209,869.90, 289,613.12 and 114,374.68 is: 157,833.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,869.90 : 289,613.12 = 114,374.68 : x
  2. Step 2: Convert to fraction form
    209,869.90/289,613.12 = 114,374.68/x
  3. Step 3: Cross multiply
    209,869.90x = 289,613.12 × 114,374.68
  4. Step 4: Simplify right side
    209,869.90x = 33,124,407,923.80
  5. Step 5: Solve for x
    x = 33,124,407,923.80/209,869.90
  6. Step 6: Final answer
    x = 157,833.06

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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.