Home / 209,614.14-289,218.33-118,949.58

Finding the Fourth Proportional to 209,614.14, 289,218.33 and 118,949.58

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Solution

The fourth proportional to 209,614.14, 289,218.33 and 118,949.58 is: 164,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,614.14 : 289,218.33 = 118,949.58 : x
  2. Step 2: Convert to fraction form
    209,614.14/289,218.33 = 118,949.58/x
  3. Step 3: Cross multiply
    209,614.14x = 289,218.33 × 118,949.58
  4. Step 4: Simplify right side
    209,614.14x = 34,402,398,881.80
  5. Step 5: Solve for x
    x = 34,402,398,881.80/209,614.14
  6. Step 6: Final answer
    x = 164,122.51

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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.