Home / 105,860.13-158,582.60-61,393.50

Finding the Fourth Proportional to 105,860.13, 158,582.60 and 61,393.50

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Solution

The fourth proportional to 105,860.13, 158,582.60 and 61,393.50 is: 91,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,860.13 : 158,582.60 = 61,393.50 : x
  2. Step 2: Convert to fraction form
    105,860.13/158,582.60 = 61,393.50/x
  3. Step 3: Cross multiply
    105,860.13x = 158,582.60 × 61,393.50
  4. Step 4: Simplify right side
    105,860.13x = 9,735,940,546.13
  5. Step 5: Solve for x
    x = 9,735,940,546.13/105,860.13
  6. Step 6: Final answer
    x = 91,969.85

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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.