Home / 97,933.29-135,109.78-72,500.53

Finding the Fourth Proportional to 97,933.29, 135,109.78 and 72,500.53

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Solution

The fourth proportional to 97,933.29, 135,109.78 and 72,500.53 is: 100,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,933.29 : 135,109.78 = 72,500.53 : x
  2. Step 2: Convert to fraction form
    97,933.29/135,109.78 = 72,500.53/x
  3. Step 3: Cross multiply
    97,933.29x = 135,109.78 × 72,500.53
  4. Step 4: Simplify right side
    97,933.29x = 9,795,531,092.26
  5. Step 5: Solve for x
    x = 9,795,531,092.26/97,933.29
  6. Step 6: Final answer
    x = 100,022.49

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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.