Home / 104,530.15-156,767.10-45,351.91

Finding the Fourth Proportional to 104,530.15, 156,767.10 and 45,351.91

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Solution

The fourth proportional to 104,530.15, 156,767.10 and 45,351.91 is: 68,015.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,530.15 : 156,767.10 = 45,351.91 : x
  2. Step 2: Convert to fraction form
    104,530.15/156,767.10 = 45,351.91/x
  3. Step 3: Cross multiply
    104,530.15x = 156,767.10 × 45,351.91
  4. Step 4: Simplify right side
    104,530.15x = 7,109,687,410.16
  5. Step 5: Solve for x
    x = 7,109,687,410.16/104,530.15
  6. Step 6: Final answer
    x = 68,015.66

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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.