Home / 97,928.97-135,183.30-66,140.91

Finding the Fourth Proportional to 97,928.97, 135,183.30 and 66,140.91

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Solution

The fourth proportional to 97,928.97, 135,183.30 and 66,140.91 is: 91,302.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,928.97 : 135,183.30 = 66,140.91 : x
  2. Step 2: Convert to fraction form
    97,928.97/135,183.30 = 66,140.91/x
  3. Step 3: Cross multiply
    97,928.97x = 135,183.30 × 66,140.91
  4. Step 4: Simplify right side
    97,928.97x = 8,941,146,478.80
  5. Step 5: Solve for x
    x = 8,941,146,478.80/97,928.97
  6. Step 6: Final answer
    x = 91,302.36

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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.