Home / 129,829.50-179,164.71-92,169.36

Finding the Fourth Proportional to 129,829.50, 179,164.71 and 92,169.36

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Solution

The fourth proportional to 129,829.50, 179,164.71 and 92,169.36 is: 127,193.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,829.50 : 179,164.71 = 92,169.36 : x
  2. Step 2: Convert to fraction form
    129,829.50/179,164.71 = 92,169.36/x
  3. Step 3: Cross multiply
    129,829.50x = 179,164.71 × 92,169.36
  4. Step 4: Simplify right side
    129,829.50x = 16,513,496,655.29
  5. Step 5: Solve for x
    x = 16,513,496,655.29/129,829.50
  6. Step 6: Final answer
    x = 127,193.72

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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.