Home / 235,513.62-325,005.70-128,081.38

Finding the Fourth Proportional to 235,513.62, 325,005.70 and 128,081.38

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Solution

The fourth proportional to 235,513.62, 325,005.70 and 128,081.38 is: 176,750.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,513.62 : 325,005.70 = 128,081.38 : x
  2. Step 2: Convert to fraction form
    235,513.62/325,005.70 = 128,081.38/x
  3. Step 3: Cross multiply
    235,513.62x = 325,005.70 × 128,081.38
  4. Step 4: Simplify right side
    235,513.62x = 41,627,178,563.87
  5. Step 5: Solve for x
    x = 41,627,178,563.87/235,513.62
  6. Step 6: Final answer
    x = 176,750.62

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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.