Home / 130,191.88-179,663.18-76,481.79

Finding the Fourth Proportional to 130,191.88, 179,663.18 and 76,481.79

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Solution

The fourth proportional to 130,191.88, 179,663.18 and 76,481.79 is: 105,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,191.88 : 179,663.18 = 76,481.79 : x
  2. Step 2: Convert to fraction form
    130,191.88/179,663.18 = 76,481.79/x
  3. Step 3: Cross multiply
    130,191.88x = 179,663.18 × 76,481.79
  4. Step 4: Simplify right side
    130,191.88x = 13,740,961,221.08
  5. Step 5: Solve for x
    x = 13,740,961,221.08/130,191.88
  6. Step 6: Final answer
    x = 105,543.92

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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.