Home / 130,789.38-196,134.27-77,496.40

Finding the Fourth Proportional to 130,789.38, 196,134.27 and 77,496.40

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Solution

The fourth proportional to 130,789.38, 196,134.27 and 77,496.40 is: 116,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,789.38 : 196,134.27 = 77,496.40 : x
  2. Step 2: Convert to fraction form
    130,789.38/196,134.27 = 77,496.40/x
  3. Step 3: Cross multiply
    130,789.38x = 196,134.27 × 77,496.40
  4. Step 4: Simplify right side
    130,789.38x = 15,199,699,841.63
  5. Step 5: Solve for x
    x = 15,199,699,841.63/130,789.38
  6. Step 6: Final answer
    x = 116,215.09

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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.