Home / 130,654.72-195,918.70-76,634.15

Finding the Fourth Proportional to 130,654.72, 195,918.70 and 76,634.15

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Solution

The fourth proportional to 130,654.72, 195,918.70 and 76,634.15 is: 114,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,654.72 : 195,918.70 = 76,634.15 : x
  2. Step 2: Convert to fraction form
    130,654.72/195,918.70 = 76,634.15/x
  3. Step 3: Cross multiply
    130,654.72x = 195,918.70 × 76,634.15
  4. Step 4: Simplify right side
    130,654.72x = 15,014,063,118.16
  5. Step 5: Solve for x
    x = 15,014,063,118.16/130,654.72
  6. Step 6: Final answer
    x = 114,914.05

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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.