Home / 129,782.45-179,132.41-73,226.63

Finding the Fourth Proportional to 129,782.45, 179,132.41 and 73,226.63

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Solution

The fourth proportional to 129,782.45, 179,132.41 and 73,226.63 is: 101,071.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,782.45 : 179,132.41 = 73,226.63 : x
  2. Step 2: Convert to fraction form
    129,782.45/179,132.41 = 73,226.63/x
  3. Step 3: Cross multiply
    129,782.45x = 179,132.41 × 73,226.63
  4. Step 4: Simplify right side
    129,782.45x = 13,117,263,247.44
  5. Step 5: Solve for x
    x = 13,117,263,247.44/129,782.45
  6. Step 6: Final answer
    x = 101,071.16

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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.