Home / 130,530.30-195,682.38-77,829.12

Finding the Fourth Proportional to 130,530.30, 195,682.38 and 77,829.12

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Solution

The fourth proportional to 130,530.30, 195,682.38 and 77,829.12 is: 116,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,530.30 : 195,682.38 = 77,829.12 : x
  2. Step 2: Convert to fraction form
    130,530.30/195,682.38 = 77,829.12/x
  3. Step 3: Cross multiply
    130,530.30x = 195,682.38 × 77,829.12
  4. Step 4: Simplify right side
    130,530.30x = 15,229,787,434.91
  5. Step 5: Solve for x
    x = 15,229,787,434.91/130,530.30
  6. Step 6: Final answer
    x = 116,676.26

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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.