Home / 195,717.60-270,202.32-128,844

Finding the Fourth Proportional to 195,717.60, 270,202.32 and 128,844

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Solution

The fourth proportional to 195,717.60, 270,202.32 and 128,844 is: 177,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,717.60 : 270,202.32 = 128,844 : x
  2. Step 2: Convert to fraction form
    195,717.60/270,202.32 = 128,844/x
  3. Step 3: Cross multiply
    195,717.60x = 270,202.32 × 128,844
  4. Step 4: Simplify right side
    195,717.60x = 34,813,947,718.08
  5. Step 5: Solve for x
    x = 34,813,947,718.08/195,717.60
  6. Step 6: Final answer
    x = 177,878.47

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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.