Home / 209,909.36-289,673.12-114,416.08

Finding the Fourth Proportional to 209,909.36, 289,673.12 and 114,416.08

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Solution

The fourth proportional to 209,909.36, 289,673.12 and 114,416.08 is: 157,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,909.36 : 289,673.12 = 114,416.08 : x
  2. Step 2: Convert to fraction form
    209,909.36/289,673.12 = 114,416.08/x
  3. Step 3: Cross multiply
    209,909.36x = 289,673.12 × 114,416.08
  4. Step 4: Simplify right side
    209,909.36x = 33,143,262,871.77
  5. Step 5: Solve for x
    x = 33,143,262,871.77/209,909.36
  6. Step 6: Final answer
    x = 157,893.21

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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.