Home / 119,580.64-165,021.05-65,869.27

Finding the Fourth Proportional to 119,580.64, 165,021.05 and 65,869.27

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Solution

The fourth proportional to 119,580.64, 165,021.05 and 65,869.27 is: 90,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,580.64 : 165,021.05 = 65,869.27 : x
  2. Step 2: Convert to fraction form
    119,580.64/165,021.05 = 65,869.27/x
  3. Step 3: Cross multiply
    119,580.64x = 165,021.05 × 65,869.27
  4. Step 4: Simplify right side
    119,580.64x = 10,869,815,850.25
  5. Step 5: Solve for x
    x = 10,869,815,850.25/119,580.64
  6. Step 6: Final answer
    x = 90,899.46

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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.