Home / 130,661.56-180,390.25-82,304.94

Finding the Fourth Proportional to 130,661.56, 180,390.25 and 82,304.94

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Solution

The fourth proportional to 130,661.56, 180,390.25 and 82,304.94 is: 113,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,661.56 : 180,390.25 = 82,304.94 : x
  2. Step 2: Convert to fraction form
    130,661.56/180,390.25 = 82,304.94/x
  3. Step 3: Cross multiply
    130,661.56x = 180,390.25 × 82,304.94
  4. Step 4: Simplify right side
    130,661.56x = 14,847,008,702.84
  5. Step 5: Solve for x
    x = 14,847,008,702.84/130,661.56
  6. Step 6: Final answer
    x = 113,629.51

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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.