Home / 119,170.08-178,755-30,423.60

Finding the Fourth Proportional to 119,170.08, 178,755 and 30,423.60

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Solution

The fourth proportional to 119,170.08, 178,755 and 30,423.60 is: 45,635.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,170.08 : 178,755 = 30,423.60 : x
  2. Step 2: Convert to fraction form
    119,170.08/178,755 = 30,423.60/x
  3. Step 3: Cross multiply
    119,170.08x = 178,755 × 30,423.60
  4. Step 4: Simplify right side
    119,170.08x = 5,438,370,618
  5. Step 5: Solve for x
    x = 5,438,370,618/119,170.08
  6. Step 6: Final answer
    x = 45,635.37

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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.