Home / 128,754.22-193,094.43-38,805.64

Finding the Fourth Proportional to 128,754.22, 193,094.43 and 38,805.64

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Solution

The fourth proportional to 128,754.22, 193,094.43 and 38,805.64 is: 58,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,754.22 : 193,094.43 = 38,805.64 : x
  2. Step 2: Convert to fraction form
    128,754.22/193,094.43 = 38,805.64/x
  3. Step 3: Cross multiply
    128,754.22x = 193,094.43 × 38,805.64
  4. Step 4: Simplify right side
    128,754.22x = 7,493,152,936.59
  5. Step 5: Solve for x
    x = 7,493,152,936.59/128,754.22
  6. Step 6: Final answer
    x = 58,197.34

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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.