Home / 98,189.81-135,493.61-55,165.94

Finding the Fourth Proportional to 98,189.81, 135,493.61 and 55,165.94

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Solution

The fourth proportional to 98,189.81, 135,493.61 and 55,165.94 is: 76,124.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,189.81 : 135,493.61 = 55,165.94 : x
  2. Step 2: Convert to fraction form
    98,189.81/135,493.61 = 55,165.94/x
  3. Step 3: Cross multiply
    98,189.81x = 135,493.61 × 55,165.94
  4. Step 4: Simplify right side
    98,189.81x = 7,474,631,682.18
  5. Step 5: Solve for x
    x = 7,474,631,682.18/98,189.81
  6. Step 6: Final answer
    x = 76,124.32

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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.