Home / 130,076.31-195,110.01-55,148.21

Finding the Fourth Proportional to 130,076.31, 195,110.01 and 55,148.21

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Solution

The fourth proportional to 130,076.31, 195,110.01 and 55,148.21 is: 82,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,076.31 : 195,110.01 = 55,148.21 : x
  2. Step 2: Convert to fraction form
    130,076.31/195,110.01 = 55,148.21/x
  3. Step 3: Cross multiply
    130,076.31x = 195,110.01 × 55,148.21
  4. Step 4: Simplify right side
    130,076.31x = 10,759,966,829.03
  5. Step 5: Solve for x
    x = 10,759,966,829.03/130,076.31
  6. Step 6: Final answer
    x = 82,720.42

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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.