Home / 129,748.44-179,048.77-76,069.20

Finding the Fourth Proportional to 129,748.44, 179,048.77 and 76,069.20

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Solution

The fourth proportional to 129,748.44, 179,048.77 and 76,069.20 is: 104,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,748.44 : 179,048.77 = 76,069.20 : x
  2. Step 2: Convert to fraction form
    129,748.44/179,048.77 = 76,069.20/x
  3. Step 3: Cross multiply
    129,748.44x = 179,048.77 × 76,069.20
  4. Step 4: Simplify right side
    129,748.44x = 13,620,096,504.71
  5. Step 5: Solve for x
    x = 13,620,096,504.71/129,748.44
  6. Step 6: Final answer
    x = 104,973.10

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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.