Home / 140,163.10-193,419.66-76,500.89

Finding the Fourth Proportional to 140,163.10, 193,419.66 and 76,500.89

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Solution

The fourth proportional to 140,163.10, 193,419.66 and 76,500.89 is: 105,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,163.10 : 193,419.66 = 76,500.89 : x
  2. Step 2: Convert to fraction form
    140,163.10/193,419.66 = 76,500.89/x
  3. Step 3: Cross multiply
    140,163.10x = 193,419.66 × 76,500.89
  4. Step 4: Simplify right side
    140,163.10x = 14,796,776,133.50
  5. Step 5: Solve for x
    x = 14,796,776,133.50/140,163.10
  6. Step 6: Final answer
    x = 105,568.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.