Home / 117,860.46-162,703.08-75,443.58

Finding the Fourth Proportional to 117,860.46, 162,703.08 and 75,443.58

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Solution

The fourth proportional to 117,860.46, 162,703.08 and 75,443.58 is: 104,147.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,860.46 : 162,703.08 = 75,443.58 : x
  2. Step 2: Convert to fraction form
    117,860.46/162,703.08 = 75,443.58/x
  3. Step 3: Cross multiply
    117,860.46x = 162,703.08 × 75,443.58
  4. Step 4: Simplify right side
    117,860.46x = 12,274,902,832.23
  5. Step 5: Solve for x
    x = 12,274,902,832.23/117,860.46
  6. Step 6: Final answer
    x = 104,147.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.