Home / 170,801.52-256,202.28-81,999.60

Finding the Fourth Proportional to 170,801.52, 256,202.28 and 81,999.60

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Solution

The fourth proportional to 170,801.52, 256,202.28 and 81,999.60 is: 122,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,801.52 : 256,202.28 = 81,999.60 : x
  2. Step 2: Convert to fraction form
    170,801.52/256,202.28 = 81,999.60/x
  3. Step 3: Cross multiply
    170,801.52x = 256,202.28 × 81,999.60
  4. Step 4: Simplify right side
    170,801.52x = 21,008,484,479.09
  5. Step 5: Solve for x
    x = 21,008,484,479.09/170,801.52
  6. Step 6: Final answer
    x = 122,999.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.