Home / 128,333.46-177,096.94-70,971.26

Finding the Fourth Proportional to 128,333.46, 177,096.94 and 70,971.26

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Solution

The fourth proportional to 128,333.46, 177,096.94 and 70,971.26 is: 97,938.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,333.46 : 177,096.94 = 70,971.26 : x
  2. Step 2: Convert to fraction form
    128,333.46/177,096.94 = 70,971.26/x
  3. Step 3: Cross multiply
    128,333.46x = 177,096.94 × 70,971.26
  4. Step 4: Simplify right side
    128,333.46x = 12,568,793,239.26
  5. Step 5: Solve for x
    x = 12,568,793,239.26/128,333.46
  6. Step 6: Final answer
    x = 97,938.55

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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.