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Finding the Fourth Proportional to 128,533.80, 192,570.30 and 110,101.80

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Solution

The fourth proportional to 128,533.80, 192,570.30 and 110,101.80 is: 164,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,533.80 : 192,570.30 = 110,101.80 : x
  2. Step 2: Convert to fraction form
    128,533.80/192,570.30 = 110,101.80/x
  3. Step 3: Cross multiply
    128,533.80x = 192,570.30 × 110,101.80
  4. Step 4: Simplify right side
    128,533.80x = 21,202,336,656.54
  5. Step 5: Solve for x
    x = 21,202,336,656.54/128,533.80
  6. Step 6: Final answer
    x = 164,955.34

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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.