Home / 130,635.54-195,620.94-86,127.26

Finding the Fourth Proportional to 130,635.54, 195,620.94 and 86,127.26

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Solution

The fourth proportional to 130,635.54, 195,620.94 and 86,127.26 is: 128,971.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,635.54 : 195,620.94 = 86,127.26 : x
  2. Step 2: Convert to fraction form
    130,635.54/195,620.94 = 86,127.26/x
  3. Step 3: Cross multiply
    130,635.54x = 195,620.94 × 86,127.26
  4. Step 4: Simplify right side
    130,635.54x = 16,848,294,582.72
  5. Step 5: Solve for x
    x = 16,848,294,582.72/130,635.54
  6. Step 6: Final answer
    x = 128,971.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.