Home / 130,945.86-196,504.92-71,823

Finding the Fourth Proportional to 130,945.86, 196,504.92 and 71,823

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Solution

The fourth proportional to 130,945.86, 196,504.92 and 71,823 is: 107,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,945.86 : 196,504.92 = 71,823 : x
  2. Step 2: Convert to fraction form
    130,945.86/196,504.92 = 71,823/x
  3. Step 3: Cross multiply
    130,945.86x = 196,504.92 × 71,823
  4. Step 4: Simplify right side
    130,945.86x = 14,113,572,869.16
  5. Step 5: Solve for x
    x = 14,113,572,869.16/130,945.86
  6. Step 6: Final answer
    x = 107,781.74

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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.