Home / 112,214.64-154,912.32-69,786.84

Finding the Fourth Proportional to 112,214.64, 154,912.32 and 69,786.84

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Solution

The fourth proportional to 112,214.64, 154,912.32 and 69,786.84 is: 96,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,214.64 : 154,912.32 = 69,786.84 : x
  2. Step 2: Convert to fraction form
    112,214.64/154,912.32 = 69,786.84/x
  3. Step 3: Cross multiply
    112,214.64x = 154,912.32 × 69,786.84
  4. Step 4: Simplify right side
    112,214.64x = 10,810,841,289.87
  5. Step 5: Solve for x
    x = 10,810,841,289.87/112,214.64
  6. Step 6: Final answer
    x = 96,340.74

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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.