Home / 97,930.50-135,185.43-66,142.46

Finding the Fourth Proportional to 97,930.50, 135,185.43 and 66,142.46

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Solution

The fourth proportional to 97,930.50, 135,185.43 and 66,142.46 is: 91,304.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,930.50 : 135,185.43 = 66,142.46 : x
  2. Step 2: Convert to fraction form
    97,930.50/135,185.43 = 66,142.46/x
  3. Step 3: Cross multiply
    97,930.50x = 135,185.43 × 66,142.46
  4. Step 4: Simplify right side
    97,930.50x = 8,941,496,896.36
  5. Step 5: Solve for x
    x = 8,941,496,896.36/97,930.50
  6. Step 6: Final answer
    x = 91,304.52

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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.