Home / 235,964.16-325,628.87-128,534.19

Finding the Fourth Proportional to 235,964.16, 325,628.87 and 128,534.19

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Solution

The fourth proportional to 235,964.16, 325,628.87 and 128,534.19 is: 177,376.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,964.16 : 325,628.87 = 128,534.19 : x
  2. Step 2: Convert to fraction form
    235,964.16/325,628.87 = 128,534.19/x
  3. Step 3: Cross multiply
    235,964.16x = 325,628.87 × 128,534.19
  4. Step 4: Simplify right side
    235,964.16x = 41,854,443,917.70
  5. Step 5: Solve for x
    x = 41,854,443,917.70/235,964.16
  6. Step 6: Final answer
    x = 177,376.27

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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.