Home / 236,140.50-325,874.10-128,708.38

Finding the Fourth Proportional to 236,140.50, 325,874.10 and 128,708.38

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Solution

The fourth proportional to 236,140.50, 325,874.10 and 128,708.38 is: 177,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,140.50 : 325,874.10 = 128,708.38 : x
  2. Step 2: Convert to fraction form
    236,140.50/325,874.10 = 128,708.38/x
  3. Step 3: Cross multiply
    236,140.50x = 325,874.10 × 128,708.38
  4. Step 4: Simplify right side
    236,140.50x = 41,942,727,494.96
  5. Step 5: Solve for x
    x = 41,942,727,494.96/236,140.50
  6. Step 6: Final answer
    x = 177,617.68

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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.