Home / 132,185.68-198,210.48-53,278.72

Finding the Fourth Proportional to 132,185.68, 198,210.48 and 53,278.72

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Solution

The fourth proportional to 132,185.68, 198,210.48 and 53,278.72 is: 79,890.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,185.68 : 198,210.48 = 53,278.72 : x
  2. Step 2: Convert to fraction form
    132,185.68/198,210.48 = 53,278.72/x
  3. Step 3: Cross multiply
    132,185.68x = 198,210.48 × 53,278.72
  4. Step 4: Simplify right side
    132,185.68x = 10,560,400,664.99
  5. Step 5: Solve for x
    x = 10,560,400,664.99/132,185.68
  6. Step 6: Final answer
    x = 79,890.66

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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.