Home / 117,182.12-161,710.80-65,499.14

Finding the Fourth Proportional to 117,182.12, 161,710.80 and 65,499.14

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Solution

The fourth proportional to 117,182.12, 161,710.80 and 65,499.14 is: 90,388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,182.12 : 161,710.80 = 65,499.14 : x
  2. Step 2: Convert to fraction form
    117,182.12/161,710.80 = 65,499.14/x
  3. Step 3: Cross multiply
    117,182.12x = 161,710.80 × 65,499.14
  4. Step 4: Simplify right side
    117,182.12x = 10,591,917,520.16
  5. Step 5: Solve for x
    x = 10,591,917,520.16/117,182.12
  6. Step 6: Final answer
    x = 90,388.52

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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.