Home / 236,006.78-325,688.38-128,576.48

Finding the Fourth Proportional to 236,006.78, 325,688.38 and 128,576.48

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Solution

The fourth proportional to 236,006.78, 325,688.38 and 128,576.48 is: 177,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,006.78 : 325,688.38 = 128,576.48 : x
  2. Step 2: Convert to fraction form
    236,006.78/325,688.38 = 128,576.48/x
  3. Step 3: Cross multiply
    236,006.78x = 325,688.38 × 128,576.48
  4. Step 4: Simplify right side
    236,006.78x = 41,875,863,527.42
  5. Step 5: Solve for x
    x = 41,875,863,527.42/236,006.78
  6. Step 6: Final answer
    x = 177,435.01

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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.