Home / 129,971.11-179,339.91-73,381.27

Finding the Fourth Proportional to 129,971.11, 179,339.91 and 73,381.27

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Solution

The fourth proportional to 129,971.11, 179,339.91 and 73,381.27 is: 101,254.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,971.11 : 179,339.91 = 73,381.27 : x
  2. Step 2: Convert to fraction form
    129,971.11/179,339.91 = 73,381.27/x
  3. Step 3: Cross multiply
    129,971.11x = 179,339.91 × 73,381.27
  4. Step 4: Simplify right side
    129,971.11x = 13,160,190,357.49
  5. Step 5: Solve for x
    x = 13,160,190,357.49/129,971.11
  6. Step 6: Final answer
    x = 101,254.74

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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.