Home / 187,280.10-280,948.11-68,942.43

Finding the Fourth Proportional to 187,280.10, 280,948.11 and 68,942.43

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Solution

The fourth proportional to 187,280.10, 280,948.11 and 68,942.43 is: 103,423.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,280.10 : 280,948.11 = 68,942.43 : x
  2. Step 2: Convert to fraction form
    187,280.10/280,948.11 = 68,942.43/x
  3. Step 3: Cross multiply
    187,280.10x = 280,948.11 × 68,942.43
  4. Step 4: Simplify right side
    187,280.10x = 19,369,245,407.31
  5. Step 5: Solve for x
    x = 19,369,245,407.31/187,280.10
  6. Step 6: Final answer
    x = 103,423.94

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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.