Home / 130,945.68-196,504.65-71,822.90

Finding the Fourth Proportional to 130,945.68, 196,504.65 and 71,822.90

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Solution

The fourth proportional to 130,945.68, 196,504.65 and 71,822.90 is: 107,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,945.68 : 196,504.65 = 71,822.90 : x
  2. Step 2: Convert to fraction form
    130,945.68/196,504.65 = 71,822.90/x
  3. Step 3: Cross multiply
    130,945.68x = 196,504.65 × 71,822.90
  4. Step 4: Simplify right side
    130,945.68x = 14,113,534,317.75
  5. Step 5: Solve for x
    x = 14,113,534,317.75/130,945.68
  6. Step 6: Final answer
    x = 107,781.60

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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.