Home / 129,719.22-179,012.73-72,362.26

Finding the Fourth Proportional to 129,719.22, 179,012.73 and 72,362.26

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Solution

The fourth proportional to 129,719.22, 179,012.73 and 72,362.26 is: 99,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,719.22 : 179,012.73 = 72,362.26 : x
  2. Step 2: Convert to fraction form
    129,719.22/179,012.73 = 72,362.26/x
  3. Step 3: Cross multiply
    129,719.22x = 179,012.73 × 72,362.26
  4. Step 4: Simplify right side
    129,719.22x = 12,953,766,206.69
  5. Step 5: Solve for x
    x = 12,953,766,206.69/129,719.22
  6. Step 6: Final answer
    x = 99,860.04

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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.