Home / 119,829.72-165,370.01-66,118.22

Finding the Fourth Proportional to 119,829.72, 165,370.01 and 66,118.22

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Solution

The fourth proportional to 119,829.72, 165,370.01 and 66,118.22 is: 91,245.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,829.72 : 165,370.01 = 66,118.22 : x
  2. Step 2: Convert to fraction form
    119,829.72/165,370.01 = 66,118.22/x
  3. Step 3: Cross multiply
    119,829.72x = 165,370.01 × 66,118.22
  4. Step 4: Simplify right side
    119,829.72x = 10,933,970,041.03
  5. Step 5: Solve for x
    x = 10,933,970,041.03/119,829.72
  6. Step 6: Final answer
    x = 91,245.89

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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.