Home / 115,412.20-173,118.30-92,861.80

Finding the Fourth Proportional to 115,412.20, 173,118.30 and 92,861.80

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Solution

The fourth proportional to 115,412.20, 173,118.30 and 92,861.80 is: 139,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,412.20 : 173,118.30 = 92,861.80 : x
  2. Step 2: Convert to fraction form
    115,412.20/173,118.30 = 92,861.80/x
  3. Step 3: Cross multiply
    115,412.20x = 173,118.30 × 92,861.80
  4. Step 4: Simplify right side
    115,412.20x = 16,076,076,950.94
  5. Step 5: Solve for x
    x = 16,076,076,950.94/115,412.20
  6. Step 6: Final answer
    x = 139,292.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.