Home / 130,789.88-196,135.02-77,496.90

Finding the Fourth Proportional to 130,789.88, 196,135.02 and 77,496.90

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Solution

The fourth proportional to 130,789.88, 196,135.02 and 77,496.90 is: 116,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,789.88 : 196,135.02 = 77,496.90 : x
  2. Step 2: Convert to fraction form
    130,789.88/196,135.02 = 77,496.90/x
  3. Step 3: Cross multiply
    130,789.88x = 196,135.02 × 77,496.90
  4. Step 4: Simplify right side
    130,789.88x = 15,199,856,031.44
  5. Step 5: Solve for x
    x = 15,199,856,031.44/130,789.88
  6. Step 6: Final answer
    x = 116,215.84

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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.