Home / 118,748.66-178,121.81-51,328.37

Finding the Fourth Proportional to 118,748.66, 178,121.81 and 51,328.37

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Solution

The fourth proportional to 118,748.66, 178,121.81 and 51,328.37 is: 76,992.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,748.66 : 178,121.81 = 51,328.37 : x
  2. Step 2: Convert to fraction form
    118,748.66/178,121.81 = 51,328.37/x
  3. Step 3: Cross multiply
    118,748.66x = 178,121.81 × 51,328.37
  4. Step 4: Simplify right side
    118,748.66x = 9,142,702,742.38
  5. Step 5: Solve for x
    x = 9,142,702,742.38/118,748.66
  6. Step 6: Final answer
    x = 76,992.05

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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.