Home / 199,924.23-275,868.81-128,401.14

Finding the Fourth Proportional to 199,924.23, 275,868.81 and 128,401.14

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Solution

The fourth proportional to 199,924.23, 275,868.81 and 128,401.14 is: 177,176.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,924.23 : 275,868.81 = 128,401.14 : x
  2. Step 2: Convert to fraction form
    199,924.23/275,868.81 = 128,401.14/x
  3. Step 3: Cross multiply
    199,924.23x = 275,868.81 × 128,401.14
  4. Step 4: Simplify right side
    199,924.23x = 35,421,869,694.44
  5. Step 5: Solve for x
    x = 35,421,869,694.44/199,924.23
  6. Step 6: Final answer
    x = 177,176.47

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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.