Home / 236,006.40-325,687.86-128,576.10

Finding the Fourth Proportional to 236,006.40, 325,687.86 and 128,576.10

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Solution

The fourth proportional to 236,006.40, 325,687.86 and 128,576.10 is: 177,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,006.40 : 325,687.86 = 128,576.10 : x
  2. Step 2: Convert to fraction form
    236,006.40/325,687.86 = 128,576.10/x
  3. Step 3: Cross multiply
    236,006.40x = 325,687.86 × 128,576.10
  4. Step 4: Simplify right side
    236,006.40x = 41,875,674,856.15
  5. Step 5: Solve for x
    x = 41,875,674,856.15/236,006.40
  6. Step 6: Final answer
    x = 177,434.49

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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.