Home / 119,764.72-165,287-89,497.49

Finding the Fourth Proportional to 119,764.72, 165,287 and 89,497.49

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Solution

The fourth proportional to 119,764.72, 165,287 and 89,497.49 is: 123,515.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,764.72 : 165,287 = 89,497.49 : x
  2. Step 2: Convert to fraction form
    119,764.72/165,287 = 89,497.49/x
  3. Step 3: Cross multiply
    119,764.72x = 165,287 × 89,497.49
  4. Step 4: Simplify right side
    119,764.72x = 14,792,771,629.63
  5. Step 5: Solve for x
    x = 14,792,771,629.63/119,764.72
  6. Step 6: Final answer
    x = 123,515.27

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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.