Home / 118,664.85-178,120.37-79,495.68

Finding the Fourth Proportional to 118,664.85, 178,120.37 and 79,495.68

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Solution

The fourth proportional to 118,664.85, 178,120.37 and 79,495.68 is: 119,325.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,664.85 : 178,120.37 = 79,495.68 : x
  2. Step 2: Convert to fraction form
    118,664.85/178,120.37 = 79,495.68/x
  3. Step 3: Cross multiply
    118,664.85x = 178,120.37 × 79,495.68
  4. Step 4: Simplify right side
    118,664.85x = 14,159,799,352.60
  5. Step 5: Solve for x
    x = 14,159,799,352.60/118,664.85
  6. Step 6: Final answer
    x = 119,325.98

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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.