Home / 98,133.20-135,430.81-55,694.46

Finding the Fourth Proportional to 98,133.20, 135,430.81 and 55,694.46

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Solution

The fourth proportional to 98,133.20, 135,430.81 and 55,694.46 is: 76,862.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,133.20 : 135,430.81 = 55,694.46 : x
  2. Step 2: Convert to fraction form
    98,133.20/135,430.81 = 55,694.46/x
  3. Step 3: Cross multiply
    98,133.20x = 135,430.81 × 55,694.46
  4. Step 4: Simplify right side
    98,133.20x = 7,542,745,691.08
  5. Step 5: Solve for x
    x = 7,542,745,691.08/98,133.20
  6. Step 6: Final answer
    x = 76,862.33

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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.