Home / 129,777.12-179,097.48-73,190.52

Finding the Fourth Proportional to 129,777.12, 179,097.48 and 73,190.52

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Solution

The fourth proportional to 129,777.12, 179,097.48 and 73,190.52 is: 101,005.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,777.12 : 179,097.48 = 73,190.52 : x
  2. Step 2: Convert to fraction form
    129,777.12/179,097.48 = 73,190.52/x
  3. Step 3: Cross multiply
    129,777.12x = 179,097.48 × 73,190.52
  4. Step 4: Simplify right side
    129,777.12x = 13,108,237,691.89
  5. Step 5: Solve for x
    x = 13,108,237,691.89/129,777.12
  6. Step 6: Final answer
    x = 101,005.77

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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.