Home / 130,664.76-180,394.65-82,308.12

Finding the Fourth Proportional to 130,664.76, 180,394.65 and 82,308.12

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Solution

The fourth proportional to 130,664.76, 180,394.65 and 82,308.12 is: 113,633.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,664.76 : 180,394.65 = 82,308.12 : x
  2. Step 2: Convert to fraction form
    130,664.76/180,394.65 = 82,308.12/x
  3. Step 3: Cross multiply
    130,664.76x = 180,394.65 × 82,308.12
  4. Step 4: Simplify right side
    130,664.76x = 14,847,944,499.56
  5. Step 5: Solve for x
    x = 14,847,944,499.56/130,664.76
  6. Step 6: Final answer
    x = 113,633.89

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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.