Home / 105,537.30-158,536.35-74,433.30

Finding the Fourth Proportional to 105,537.30, 158,536.35 and 74,433.30

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Solution

The fourth proportional to 105,537.30, 158,536.35 and 74,433.30 is: 111,812.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,537.30 : 158,536.35 = 74,433.30 : x
  2. Step 2: Convert to fraction form
    105,537.30/158,536.35 = 74,433.30/x
  3. Step 3: Cross multiply
    105,537.30x = 158,536.35 × 74,433.30
  4. Step 4: Simplify right side
    105,537.30x = 11,800,383,700.46
  5. Step 5: Solve for x
    x = 11,800,383,700.46/105,537.30
  6. Step 6: Final answer
    x = 111,812.45

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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.