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Finding the Fourth Proportional to 178,745.58, 267,710.04 and 85,316.94

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Solution

The fourth proportional to 178,745.58, 267,710.04 and 85,316.94 is: 127,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,745.58 : 267,710.04 = 85,316.94 : x
  2. Step 2: Convert to fraction form
    178,745.58/267,710.04 = 85,316.94/x
  3. Step 3: Cross multiply
    178,745.58x = 267,710.04 × 85,316.94
  4. Step 4: Simplify right side
    178,745.58x = 22,840,201,420.08
  5. Step 5: Solve for x
    x = 22,840,201,420.08/178,745.58
  6. Step 6: Final answer
    x = 127,780.51

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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.