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Finding the Fourth Proportional to 173,884.10, 260,838.30 and 68,689.40

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Solution

The fourth proportional to 173,884.10, 260,838.30 and 68,689.40 is: 103,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,884.10 : 260,838.30 = 68,689.40 : x
  2. Step 2: Convert to fraction form
    173,884.10/260,838.30 = 68,689.40/x
  3. Step 3: Cross multiply
    173,884.10x = 260,838.30 × 68,689.40
  4. Step 4: Simplify right side
    173,884.10x = 17,916,826,324.02
  5. Step 5: Solve for x
    x = 17,916,826,324.02/173,884.10
  6. Step 6: Final answer
    x = 103,038.90

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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.