Home / 130,190.82-179,664.63-76,493.10

Finding the Fourth Proportional to 130,190.82, 179,664.63 and 76,493.10

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Solution

The fourth proportional to 130,190.82, 179,664.63 and 76,493.10 is: 105,561.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,190.82 : 179,664.63 = 76,493.10 : x
  2. Step 2: Convert to fraction form
    130,190.82/179,664.63 = 76,493.10/x
  3. Step 3: Cross multiply
    130,190.82x = 179,664.63 × 76,493.10
  4. Step 4: Simplify right side
    130,190.82x = 13,743,104,509.05
  5. Step 5: Solve for x
    x = 13,743,104,509.05/130,190.82
  6. Step 6: Final answer
    x = 105,561.24

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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.