Home / 130,995.05-180,720.66-82,581.03

Finding the Fourth Proportional to 130,995.05, 180,720.66 and 82,581.03

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Solution

The fourth proportional to 130,995.05, 180,720.66 and 82,581.03 is: 113,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,995.05 : 180,720.66 = 82,581.03 : x
  2. Step 2: Convert to fraction form
    130,995.05/180,720.66 = 82,581.03/x
  3. Step 3: Cross multiply
    130,995.05x = 180,720.66 × 82,581.03
  4. Step 4: Simplify right side
    130,995.05x = 14,924,098,245.08
  5. Step 5: Solve for x
    x = 14,924,098,245.08/130,995.05
  6. Step 6: Final answer
    x = 113,928.72

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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.