Home / 199,335.49-275,088.51-121,823.69

Finding the Fourth Proportional to 199,335.49, 275,088.51 and 121,823.69

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Solution

The fourth proportional to 199,335.49, 275,088.51 and 121,823.69 is: 168,120.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,335.49 : 275,088.51 = 121,823.69 : x
  2. Step 2: Convert to fraction form
    199,335.49/275,088.51 = 121,823.69/x
  3. Step 3: Cross multiply
    199,335.49x = 275,088.51 × 121,823.69
  4. Step 4: Simplify right side
    199,335.49x = 33,512,295,989.36
  5. Step 5: Solve for x
    x = 33,512,295,989.36/199,335.49
  6. Step 6: Final answer
    x = 168,120.07

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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.