Home / 97,640.10-134,742.69-55,198.56

Finding the Fourth Proportional to 97,640.10, 134,742.69 and 55,198.56

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Solution

The fourth proportional to 97,640.10, 134,742.69 and 55,198.56 is: 76,173.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,640.10 : 134,742.69 = 55,198.56 : x
  2. Step 2: Convert to fraction form
    97,640.10/134,742.69 = 55,198.56/x
  3. Step 3: Cross multiply
    97,640.10x = 134,742.69 × 55,198.56
  4. Step 4: Simplify right side
    97,640.10x = 7,437,602,458.53
  5. Step 5: Solve for x
    x = 7,437,602,458.53/97,640.10
  6. Step 6: Final answer
    x = 76,173.65

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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.