Home / 128,302.46-177,054.24-70,940.27

Finding the Fourth Proportional to 128,302.46, 177,054.24 and 70,940.27

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Solution

The fourth proportional to 128,302.46, 177,054.24 and 70,940.27 is: 97,895.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,302.46 : 177,054.24 = 70,940.27 : x
  2. Step 2: Convert to fraction form
    128,302.46/177,054.24 = 70,940.27/x
  3. Step 3: Cross multiply
    128,302.46x = 177,054.24 × 70,940.27
  4. Step 4: Simplify right side
    128,302.46x = 12,560,274,704.97
  5. Step 5: Solve for x
    x = 12,560,274,704.97/128,302.46
  6. Step 6: Final answer
    x = 97,895.83

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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.