Home / 130,957.96-196,438.17-71,761.31

Finding the Fourth Proportional to 130,957.96, 196,438.17 and 71,761.31

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Solution

The fourth proportional to 130,957.96, 196,438.17 and 71,761.31 is: 107,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,957.96 : 196,438.17 = 71,761.31 : x
  2. Step 2: Convert to fraction form
    130,957.96/196,438.17 = 71,761.31/x
  3. Step 3: Cross multiply
    130,957.96x = 196,438.17 × 71,761.31
  4. Step 4: Simplify right side
    130,957.96x = 14,096,660,413.20
  5. Step 5: Solve for x
    x = 14,096,660,413.20/130,957.96
  6. Step 6: Final answer
    x = 107,642.64

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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.