Home / 119,734.57-165,234.95-66,021.49

Finding the Fourth Proportional to 119,734.57, 165,234.95 and 66,021.49

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Solution

The fourth proportional to 119,734.57, 165,234.95 and 66,021.49 is: 91,110.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,734.57 : 165,234.95 = 66,021.49 : x
  2. Step 2: Convert to fraction form
    119,734.57/165,234.95 = 66,021.49/x
  3. Step 3: Cross multiply
    119,734.57x = 165,234.95 × 66,021.49
  4. Step 4: Simplify right side
    119,734.57x = 10,909,057,599.08
  5. Step 5: Solve for x
    x = 10,909,057,599.08/119,734.57
  6. Step 6: Final answer
    x = 91,110.34

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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.