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Finding the Fourth Proportional to 95,485.17, 130,750.89 and 91,720.80

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Solution

The fourth proportional to 95,485.17, 130,750.89 and 91,720.80 is: 125,596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,485.17 : 130,750.89 = 91,720.80 : x
  2. Step 2: Convert to fraction form
    95,485.17/130,750.89 = 91,720.80/x
  3. Step 3: Cross multiply
    95,485.17x = 130,750.89 × 91,720.80
  4. Step 4: Simplify right side
    95,485.17x = 11,992,576,231.51
  5. Step 5: Solve for x
    x = 11,992,576,231.51/95,485.17
  6. Step 6: Final answer
    x = 125,596.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.