Home / 128,818.98-193,229.55-35,325.54

Finding the Fourth Proportional to 128,818.98, 193,229.55 and 35,325.54

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Solution

The fourth proportional to 128,818.98, 193,229.55 and 35,325.54 is: 52,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,818.98 : 193,229.55 = 35,325.54 : x
  2. Step 2: Convert to fraction form
    128,818.98/193,229.55 = 35,325.54/x
  3. Step 3: Cross multiply
    128,818.98x = 193,229.55 × 35,325.54
  4. Step 4: Simplify right side
    128,818.98x = 6,825,938,197.71
  5. Step 5: Solve for x
    x = 6,825,938,197.71/128,818.98
  6. Step 6: Final answer
    x = 52,988.61

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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.