Home / 130,419.54-195,629.37-71,222.85

Finding the Fourth Proportional to 130,419.54, 195,629.37 and 71,222.85

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Solution

The fourth proportional to 130,419.54, 195,629.37 and 71,222.85 is: 106,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,419.54 : 195,629.37 = 71,222.85 : x
  2. Step 2: Convert to fraction form
    130,419.54/195,629.37 = 71,222.85/x
  3. Step 3: Cross multiply
    130,419.54x = 195,629.37 × 71,222.85
  4. Step 4: Simplify right side
    130,419.54x = 13,933,281,275.10
  5. Step 5: Solve for x
    x = 13,933,281,275.10/130,419.54
  6. Step 6: Final answer
    x = 106,834.31

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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.