Home / 361,725.76-542,749.92-140,127.04

Finding the Fourth Proportional to 361,725.76, 542,749.92 and 140,127.04

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Solution

The fourth proportional to 361,725.76, 542,749.92 and 140,127.04 is: 210,253.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,725.76 : 542,749.92 = 140,127.04 : x
  2. Step 2: Convert to fraction form
    361,725.76/542,749.92 = 140,127.04/x
  3. Step 3: Cross multiply
    361,725.76x = 542,749.92 × 140,127.04
  4. Step 4: Simplify right side
    361,725.76x = 76,053,939,749.84
  5. Step 5: Solve for x
    x = 76,053,939,749.84/361,725.76
  6. Step 6: Final answer
    x = 210,253.04

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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.