Home / 361,128.16-541,579.92-121,195.36

Finding the Fourth Proportional to 361,128.16, 541,579.92 and 121,195.36

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Solution

The fourth proportional to 361,128.16, 541,579.92 and 121,195.36 is: 181,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,128.16 : 541,579.92 = 121,195.36 : x
  2. Step 2: Convert to fraction form
    361,128.16/541,579.92 = 121,195.36/x
  3. Step 3: Cross multiply
    361,128.16x = 541,579.92 × 121,195.36
  4. Step 4: Simplify right side
    361,128.16x = 65,636,973,373.17
  5. Step 5: Solve for x
    x = 65,636,973,373.17/361,128.16
  6. Step 6: Final answer
    x = 181,755.35

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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.