Home / 112,185.41-154,728.32-71,903.03

Finding the Fourth Proportional to 112,185.41, 154,728.32 and 71,903.03

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Solution

The fourth proportional to 112,185.41, 154,728.32 and 71,903.03 is: 99,170.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,185.41 : 154,728.32 = 71,903.03 : x
  2. Step 2: Convert to fraction form
    112,185.41/154,728.32 = 71,903.03/x
  3. Step 3: Cross multiply
    112,185.41x = 154,728.32 × 71,903.03
  4. Step 4: Simplify right side
    112,185.41x = 11,125,433,901.65
  5. Step 5: Solve for x
    x = 11,125,433,901.65/112,185.41
  6. Step 6: Final answer
    x = 99,170.06

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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.