Home / 130,118.60-195,098.70-51,138.20

Finding the Fourth Proportional to 130,118.60, 195,098.70 and 51,138.20

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Solution

The fourth proportional to 130,118.60, 195,098.70 and 51,138.20 is: 76,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,118.60 : 195,098.70 = 51,138.20 : x
  2. Step 2: Convert to fraction form
    130,118.60/195,098.70 = 51,138.20/x
  3. Step 3: Cross multiply
    130,118.60x = 195,098.70 × 51,138.20
  4. Step 4: Simplify right side
    130,118.60x = 9,976,996,340.34
  5. Step 5: Solve for x
    x = 9,976,996,340.34/130,118.60
  6. Step 6: Final answer
    x = 76,676.17

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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.