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Finding the Fourth Proportional to 128,533.30, 192,569.55 and 110,101.30

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Solution

The fourth proportional to 128,533.30, 192,569.55 and 110,101.30 is: 164,954.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,533.30 : 192,569.55 = 110,101.30 : x
  2. Step 2: Convert to fraction form
    128,533.30/192,569.55 = 110,101.30/x
  3. Step 3: Cross multiply
    128,533.30x = 192,569.55 × 110,101.30
  4. Step 4: Simplify right side
    128,533.30x = 21,202,157,795.42
  5. Step 5: Solve for x
    x = 21,202,157,795.42/128,533.30
  6. Step 6: Final answer
    x = 164,954.59

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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.