Home / 129,989.11-179,385.06-75,551.94

Finding the Fourth Proportional to 129,989.11, 179,385.06 and 75,551.94

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Solution

The fourth proportional to 129,989.11, 179,385.06 and 75,551.94 is: 104,261.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,989.11 : 179,385.06 = 75,551.94 : x
  2. Step 2: Convert to fraction form
    129,989.11/179,385.06 = 75,551.94/x
  3. Step 3: Cross multiply
    129,989.11x = 179,385.06 × 75,551.94
  4. Step 4: Simplify right side
    129,989.11x = 13,552,889,290.02
  5. Step 5: Solve for x
    x = 13,552,889,290.02/129,989.11
  6. Step 6: Final answer
    x = 104,261.73

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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.