Home / 119,687.81-165,096.09-71,257.37

Finding the Fourth Proportional to 119,687.81, 165,096.09 and 71,257.37

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Solution

The fourth proportional to 119,687.81, 165,096.09 and 71,257.37 is: 98,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,687.81 : 165,096.09 = 71,257.37 : x
  2. Step 2: Convert to fraction form
    119,687.81/165,096.09 = 71,257.37/x
  3. Step 3: Cross multiply
    119,687.81x = 165,096.09 × 71,257.37
  4. Step 4: Simplify right side
    119,687.81x = 11,764,312,345.20
  5. Step 5: Solve for x
    x = 11,764,312,345.20/119,687.81
  6. Step 6: Final answer
    x = 98,291.65

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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.