Home / 235,942.32-325,595.88-128,511.12

Finding the Fourth Proportional to 235,942.32, 325,595.88 and 128,511.12

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Solution

The fourth proportional to 235,942.32, 325,595.88 and 128,511.12 is: 177,342.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,942.32 : 325,595.88 = 128,511.12 : x
  2. Step 2: Convert to fraction form
    235,942.32/325,595.88 = 128,511.12/x
  3. Step 3: Cross multiply
    235,942.32x = 325,595.88 × 128,511.12
  4. Step 4: Simplify right side
    235,942.32x = 41,842,691,206.19
  5. Step 5: Solve for x
    x = 41,842,691,206.19/235,942.32
  6. Step 6: Final answer
    x = 177,342.88

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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.