Home / 165,947.40-248,921.10-55,139.40

Finding the Fourth Proportional to 165,947.40, 248,921.10 and 55,139.40

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Solution

The fourth proportional to 165,947.40, 248,921.10 and 55,139.40 is: 82,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,947.40 : 248,921.10 = 55,139.40 : x
  2. Step 2: Convert to fraction form
    165,947.40/248,921.10 = 55,139.40/x
  3. Step 3: Cross multiply
    165,947.40x = 248,921.10 × 55,139.40
  4. Step 4: Simplify right side
    165,947.40x = 13,725,360,101.34
  5. Step 5: Solve for x
    x = 13,725,360,101.34/165,947.40
  6. Step 6: Final answer
    x = 82,709.10

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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.