Home / 235,986.45-325,658.36-128,554.17

Finding the Fourth Proportional to 235,986.45, 325,658.36 and 128,554.17

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Solution

The fourth proportional to 235,986.45, 325,658.36 and 128,554.17 is: 177,403.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,986.45 : 325,658.36 = 128,554.17 : x
  2. Step 2: Convert to fraction form
    235,986.45/325,658.36 = 128,554.17/x
  3. Step 3: Cross multiply
    235,986.45x = 325,658.36 × 128,554.17
  4. Step 4: Simplify right side
    235,986.45x = 41,864,740,173.36
  5. Step 5: Solve for x
    x = 41,864,740,173.36/235,986.45
  6. Step 6: Final answer
    x = 177,403.15

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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.