Home / 209,388.15-289,006.97-118,797.15

Finding the Fourth Proportional to 209,388.15, 289,006.97 and 118,797.15

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Solution

The fourth proportional to 209,388.15, 289,006.97 and 118,797.15 is: 163,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,388.15 : 289,006.97 = 118,797.15 : x
  2. Step 2: Convert to fraction form
    209,388.15/289,006.97 = 118,797.15/x
  3. Step 3: Cross multiply
    209,388.15x = 289,006.97 × 118,797.15
  4. Step 4: Simplify right side
    209,388.15x = 34,333,204,366.14
  5. Step 5: Solve for x
    x = 34,333,204,366.14/209,388.15
  6. Step 6: Final answer
    x = 163,969.19

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1.5x scale

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.