Home / 98,132.21-135,422.06-55,105.71

Finding the Fourth Proportional to 98,132.21, 135,422.06 and 55,105.71

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Solution

The fourth proportional to 98,132.21, 135,422.06 and 55,105.71 is: 76,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,132.21 : 135,422.06 = 55,105.71 : x
  2. Step 2: Convert to fraction form
    98,132.21/135,422.06 = 55,105.71/x
  3. Step 3: Cross multiply
    98,132.21x = 135,422.06 × 55,105.71
  4. Step 4: Simplify right side
    98,132.21x = 7,462,528,490.43
  5. Step 5: Solve for x
    x = 7,462,528,490.43/98,132.21
  6. Step 6: Final answer
    x = 76,045.66

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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.