Home / 165,921.40-248,882.10-55,113.40

Finding the Fourth Proportional to 165,921.40, 248,882.10 and 55,113.40

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Solution

The fourth proportional to 165,921.40, 248,882.10 and 55,113.40 is: 82,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,921.40 : 248,882.10 = 55,113.40 : x
  2. Step 2: Convert to fraction form
    165,921.40/248,882.10 = 55,113.40/x
  3. Step 3: Cross multiply
    165,921.40x = 248,882.10 × 55,113.40
  4. Step 4: Simplify right side
    165,921.40x = 13,716,738,730.14
  5. Step 5: Solve for x
    x = 13,716,738,730.14/165,921.40
  6. Step 6: Final answer
    x = 82,670.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.