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Finding the Fourth Proportional to 178,370.60, 267,555.90 and 73,135.40

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Solution

The fourth proportional to 178,370.60, 267,555.90 and 73,135.40 is: 109,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,370.60 : 267,555.90 = 73,135.40 : x
  2. Step 2: Convert to fraction form
    178,370.60/267,555.90 = 73,135.40/x
  3. Step 3: Cross multiply
    178,370.60x = 267,555.90 × 73,135.40
  4. Step 4: Simplify right side
    178,370.60x = 19,567,807,768.86
  5. Step 5: Solve for x
    x = 19,567,807,768.86/178,370.60
  6. Step 6: Final answer
    x = 109,703.10

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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.