Home / 130,884.42-180,615.58-79,982.28

Finding the Fourth Proportional to 130,884.42, 180,615.58 and 79,982.28

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Solution

The fourth proportional to 130,884.42, 180,615.58 and 79,982.28 is: 110,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,884.42 : 180,615.58 = 79,982.28 : x
  2. Step 2: Convert to fraction form
    130,884.42/180,615.58 = 79,982.28/x
  3. Step 3: Cross multiply
    130,884.42x = 180,615.58 × 79,982.28
  4. Step 4: Simplify right side
    130,884.42x = 14,446,045,891.92
  5. Step 5: Solve for x
    x = 14,446,045,891.92/130,884.42
  6. Step 6: Final answer
    x = 110,372.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.