Home / 112,415.32-154,952.94-76,105.32

Finding the Fourth Proportional to 112,415.32, 154,952.94 and 76,105.32

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Solution

The fourth proportional to 112,415.32, 154,952.94 and 76,105.32 is: 104,903.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,415.32 : 154,952.94 = 76,105.32 : x
  2. Step 2: Convert to fraction form
    112,415.32/154,952.94 = 76,105.32/x
  3. Step 3: Cross multiply
    112,415.32x = 154,952.94 × 76,105.32
  4. Step 4: Simplify right side
    112,415.32x = 11,792,743,083.64
  5. Step 5: Solve for x
    x = 11,792,743,083.64/112,415.32
  6. Step 6: Final answer
    x = 104,903.34

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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.