Home / 129,844.50-179,190.07-75,392.60

Finding the Fourth Proportional to 129,844.50, 179,190.07 and 75,392.60

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Solution

The fourth proportional to 129,844.50, 179,190.07 and 75,392.60 is: 104,044.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,844.50 : 179,190.07 = 75,392.60 : x
  2. Step 2: Convert to fraction form
    129,844.50/179,190.07 = 75,392.60/x
  3. Step 3: Cross multiply
    129,844.50x = 179,190.07 × 75,392.60
  4. Step 4: Simplify right side
    129,844.50x = 13,509,605,271.48
  5. Step 5: Solve for x
    x = 13,509,605,271.48/129,844.50
  6. Step 6: Final answer
    x = 104,044.49

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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.