Home / 130,005.10-195,007.65-82,765.90

Finding the Fourth Proportional to 130,005.10, 195,007.65 and 82,765.90

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Solution

The fourth proportional to 130,005.10, 195,007.65 and 82,765.90 is: 124,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,005.10 : 195,007.65 = 82,765.90 : x
  2. Step 2: Convert to fraction form
    130,005.10/195,007.65 = 82,765.90/x
  3. Step 3: Cross multiply
    130,005.10x = 195,007.65 × 82,765.90
  4. Step 4: Simplify right side
    130,005.10x = 16,139,983,659.14
  5. Step 5: Solve for x
    x = 16,139,983,659.14/130,005.10
  6. Step 6: Final answer
    x = 124,148.85

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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.