Home / 119,890.96-165,453.54-65,446.36

Finding the Fourth Proportional to 119,890.96, 165,453.54 and 65,446.36

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Solution

The fourth proportional to 119,890.96, 165,453.54 and 65,446.36 is: 90,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,890.96 : 165,453.54 = 65,446.36 : x
  2. Step 2: Convert to fraction form
    119,890.96/165,453.54 = 65,446.36/x
  3. Step 3: Cross multiply
    119,890.96x = 165,453.54 × 65,446.36
  4. Step 4: Simplify right side
    119,890.96x = 10,828,331,114.85
  5. Step 5: Solve for x
    x = 10,828,331,114.85/119,890.96
  6. Step 6: Final answer
    x = 90,318.17

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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.