Home / 117,109.49-161,551.44-71,156.75

Finding the Fourth Proportional to 117,109.49, 161,551.44 and 71,156.75

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Solution

The fourth proportional to 117,109.49, 161,551.44 and 71,156.75 is: 98,160.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,109.49 : 161,551.44 = 71,156.75 : x
  2. Step 2: Convert to fraction form
    117,109.49/161,551.44 = 71,156.75/x
  3. Step 3: Cross multiply
    117,109.49x = 161,551.44 × 71,156.75
  4. Step 4: Simplify right side
    117,109.49x = 11,495,474,620.46
  5. Step 5: Solve for x
    x = 11,495,474,620.46/117,109.49
  6. Step 6: Final answer
    x = 98,160.06

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1.5x scale

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.