Home / 112,424.85-155,074.93-85,508.35

Finding the Fourth Proportional to 112,424.85, 155,074.93 and 85,508.35

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Solution

The fourth proportional to 112,424.85, 155,074.93 and 85,508.35 is: 117,947.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,424.85 : 155,074.93 = 85,508.35 : x
  2. Step 2: Convert to fraction form
    112,424.85/155,074.93 = 85,508.35/x
  3. Step 3: Cross multiply
    112,424.85x = 155,074.93 × 85,508.35
  4. Step 4: Simplify right side
    112,424.85x = 13,260,200,789.21
  5. Step 5: Solve for x
    x = 13,260,200,789.21/112,424.85
  6. Step 6: Final answer
    x = 117,947.24

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