Home / 112,415.82-154,953.63-76,105.83

Finding the Fourth Proportional to 112,415.82, 154,953.63 and 76,105.83

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Solution

The fourth proportional to 112,415.82, 154,953.63 and 76,105.83 is: 104,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,415.82 : 154,953.63 = 76,105.83 : x
  2. Step 2: Convert to fraction form
    112,415.82/154,953.63 = 76,105.83/x
  3. Step 3: Cross multiply
    112,415.82x = 154,953.63 × 76,105.83
  4. Step 4: Simplify right side
    112,415.82x = 11,792,874,622.66
  5. Step 5: Solve for x
    x = 11,792,874,622.66/112,415.82
  6. Step 6: Final answer
    x = 104,904.05

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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.