Home / 195,342.76-269,541.06-128,357.80

Finding the Fourth Proportional to 195,342.76, 269,541.06 and 128,357.80

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Solution

The fourth proportional to 195,342.76, 269,541.06 and 128,357.80 is: 177,112.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,342.76 : 269,541.06 = 128,357.80 : x
  2. Step 2: Convert to fraction form
    195,342.76/269,541.06 = 128,357.80/x
  3. Step 3: Cross multiply
    195,342.76x = 269,541.06 × 128,357.80
  4. Step 4: Simplify right side
    195,342.76x = 34,597,697,471.27
  5. Step 5: Solve for x
    x = 34,597,697,471.27/195,342.76
  6. Step 6: Final answer
    x = 177,112.77

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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.