Home / 178,579.40-267,869.10-139,166

Finding the Fourth Proportional to 178,579.40, 267,869.10 and 139,166

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Solution

The fourth proportional to 178,579.40, 267,869.10 and 139,166 is: 208,749

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,579.40 : 267,869.10 = 139,166 : x
  2. Step 2: Convert to fraction form
    178,579.40/267,869.10 = 139,166/x
  3. Step 3: Cross multiply
    178,579.40x = 267,869.10 × 139,166
  4. Step 4: Simplify right side
    178,579.40x = 37,278,271,170.60
  5. Step 5: Solve for x
    x = 37,278,271,170.60/178,579.40
  6. Step 6: Final answer
    x = 208,749

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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.