Home / 112,106.84-154,619.90-71,824.32

Finding the Fourth Proportional to 112,106.84, 154,619.90 and 71,824.32

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Solution

The fourth proportional to 112,106.84, 154,619.90 and 71,824.32 is: 99,061.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,106.84 : 154,619.90 = 71,824.32 : x
  2. Step 2: Convert to fraction form
    112,106.84/154,619.90 = 71,824.32/x
  3. Step 3: Cross multiply
    112,106.84x = 154,619.90 × 71,824.32
  4. Step 4: Simplify right side
    112,106.84x = 11,105,469,175.97
  5. Step 5: Solve for x
    x = 11,105,469,175.97/112,106.84
  6. Step 6: Final answer
    x = 99,061.48

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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.