Home / 130,378.17-195,216.86-82,735.31

Finding the Fourth Proportional to 130,378.17, 195,216.86 and 82,735.31

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Solution

The fourth proportional to 130,378.17, 195,216.86 and 82,735.31 is: 123,880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,378.17 : 195,216.86 = 82,735.31 : x
  2. Step 2: Convert to fraction form
    130,378.17/195,216.86 = 82,735.31/x
  3. Step 3: Cross multiply
    130,378.17x = 195,216.86 × 82,735.31
  4. Step 4: Simplify right side
    130,378.17x = 16,151,328,377.82
  5. Step 5: Solve for x
    x = 16,151,328,377.82/130,378.17
  6. Step 6: Final answer
    x = 123,880.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.