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Finding the Fourth Proportional to 130,081.70, 195,166.29 and 51,203.90

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Solution

The fourth proportional to 130,081.70, 195,166.29 and 51,203.90 is: 76,823.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,081.70 : 195,166.29 = 51,203.90 : x
  2. Step 2: Convert to fraction form
    130,081.70/195,166.29 = 51,203.90/x
  3. Step 3: Cross multiply
    130,081.70x = 195,166.29 × 51,203.90
  4. Step 4: Simplify right side
    130,081.70x = 9,993,275,196.53
  5. Step 5: Solve for x
    x = 9,993,275,196.53/130,081.70
  6. Step 6: Final answer
    x = 76,823.07

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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.