Home / 117,194.04-161,716.20-65,501.60

Finding the Fourth Proportional to 117,194.04, 161,716.20 and 65,501.60

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Solution

The fourth proportional to 117,194.04, 161,716.20 and 65,501.60 is: 90,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,194.04 : 161,716.20 = 65,501.60 : x
  2. Step 2: Convert to fraction form
    117,194.04/161,716.20 = 65,501.60/x
  3. Step 3: Cross multiply
    117,194.04x = 161,716.20 × 65,501.60
  4. Step 4: Simplify right side
    117,194.04x = 10,592,669,037.34
  5. Step 5: Solve for x
    x = 10,592,669,037.34/117,194.04
  6. Step 6: Final answer
    x = 90,385.73

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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.