Home / 119,741.49-165,240-66,025.53

Finding the Fourth Proportional to 119,741.49, 165,240 and 66,025.53

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Solution

The fourth proportional to 119,741.49, 165,240 and 66,025.53 is: 91,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,741.49 : 165,240 = 66,025.53 : x
  2. Step 2: Convert to fraction form
    119,741.49/165,240 = 66,025.53/x
  3. Step 3: Cross multiply
    119,741.49x = 165,240 × 66,025.53
  4. Step 4: Simplify right side
    119,741.49x = 10,910,058,577.20
  5. Step 5: Solve for x
    x = 10,910,058,577.20/119,741.49
  6. Step 6: Final answer
    x = 91,113.44

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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.