Home / 128,983.35-193,475.04-54,083.46

Finding the Fourth Proportional to 128,983.35, 193,475.04 and 54,083.46

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Solution

The fourth proportional to 128,983.35, 193,475.04 and 54,083.46 is: 81,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,983.35 : 193,475.04 = 54,083.46 : x
  2. Step 2: Convert to fraction form
    128,983.35/193,475.04 = 54,083.46/x
  3. Step 3: Cross multiply
    128,983.35x = 193,475.04 × 54,083.46
  4. Step 4: Simplify right side
    128,983.35x = 10,463,799,586.84
  5. Step 5: Solve for x
    x = 10,463,799,586.84/128,983.35
  6. Step 6: Final answer
    x = 81,125.20

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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.