Home / 130,261.83-179,796.68-76,564.09

Finding the Fourth Proportional to 130,261.83, 179,796.68 and 76,564.09

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Solution

The fourth proportional to 130,261.83, 179,796.68 and 76,564.09 is: 105,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,261.83 : 179,796.68 = 76,564.09 : x
  2. Step 2: Convert to fraction form
    130,261.83/179,796.68 = 76,564.09/x
  3. Step 3: Cross multiply
    130,261.83x = 179,796.68 × 76,564.09
  4. Step 4: Simplify right side
    130,261.83x = 13,765,969,189.22
  5. Step 5: Solve for x
    x = 13,765,969,189.22/130,261.83
  6. Step 6: Final answer
    x = 105,679.22

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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.