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Finding the Fourth Proportional to 135,686.88, 203,543.28 and 60,804

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Solution

The fourth proportional to 135,686.88, 203,543.28 and 60,804 is: 91,211.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,686.88 : 203,543.28 = 60,804 : x
  2. Step 2: Convert to fraction form
    135,686.88/203,543.28 = 60,804/x
  3. Step 3: Cross multiply
    135,686.88x = 203,543.28 × 60,804
  4. Step 4: Simplify right side
    135,686.88x = 12,376,245,597.12
  5. Step 5: Solve for x
    x = 12,376,245,597.12/135,686.88
  6. Step 6: Final answer
    x = 91,211.81

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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.