Home / 129,716.22-179,008.66-72,354.07

Finding the Fourth Proportional to 129,716.22, 179,008.66 and 72,354.07

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Solution

The fourth proportional to 129,716.22, 179,008.66 and 72,354.07 is: 99,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,716.22 : 179,008.66 = 72,354.07 : x
  2. Step 2: Convert to fraction form
    129,716.22/179,008.66 = 72,354.07/x
  3. Step 3: Cross multiply
    129,716.22x = 179,008.66 × 72,354.07
  4. Step 4: Simplify right side
    129,716.22x = 12,952,004,116.96
  5. Step 5: Solve for x
    x = 12,952,004,116.96/129,716.22
  6. Step 6: Final answer
    x = 99,848.76

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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.