Home / 130,305.78-195,460.56-51,419.25

Finding the Fourth Proportional to 130,305.78, 195,460.56 and 51,419.25

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Solution

The fourth proportional to 130,305.78, 195,460.56 and 51,419.25 is: 77,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,305.78 : 195,460.56 = 51,419.25 : x
  2. Step 2: Convert to fraction form
    130,305.78/195,460.56 = 51,419.25/x
  3. Step 3: Cross multiply
    130,305.78x = 195,460.56 × 51,419.25
  4. Step 4: Simplify right side
    130,305.78x = 10,050,435,399.78
  5. Step 5: Solve for x
    x = 10,050,435,399.78/130,305.78
  6. Step 6: Final answer
    x = 77,129.62

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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.