Home / 130,134.50-179,589.93-71,992.05

Finding the Fourth Proportional to 130,134.50, 179,589.93 and 71,992.05

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Solution

The fourth proportional to 130,134.50, 179,589.93 and 71,992.05 is: 99,351.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,134.50 : 179,589.93 = 71,992.05 : x
  2. Step 2: Convert to fraction form
    130,134.50/179,589.93 = 71,992.05/x
  3. Step 3: Cross multiply
    130,134.50x = 179,589.93 × 71,992.05
  4. Step 4: Simplify right side
    130,134.50x = 12,929,046,276.62
  5. Step 5: Solve for x
    x = 12,929,046,276.62/130,134.50
  6. Step 6: Final answer
    x = 99,351.41

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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.