Home / 112,409.44-155,155.92-69,942.64

Finding the Fourth Proportional to 112,409.44, 155,155.92 and 69,942.64

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Solution

The fourth proportional to 112,409.44, 155,155.92 and 69,942.64 is: 96,540.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,409.44 : 155,155.92 = 69,942.64 : x
  2. Step 2: Convert to fraction form
    112,409.44/155,155.92 = 69,942.64/x
  3. Step 3: Cross multiply
    112,409.44x = 155,155.92 × 69,942.64
  4. Step 4: Simplify right side
    112,409.44x = 10,852,014,656.43
  5. Step 5: Solve for x
    x = 10,852,014,656.43/112,409.44
  6. Step 6: Final answer
    x = 96,540.07

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1.5x scale

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.