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Finding the Fourth Proportional to 173,135.70, 259,703.55 and 162,638.10

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Solution

The fourth proportional to 173,135.70, 259,703.55 and 162,638.10 is: 243,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,135.70 : 259,703.55 = 162,638.10 : x
  2. Step 2: Convert to fraction form
    173,135.70/259,703.55 = 162,638.10/x
  3. Step 3: Cross multiply
    173,135.70x = 259,703.55 × 162,638.10
  4. Step 4: Simplify right side
    173,135.70x = 42,237,691,935.26
  5. Step 5: Solve for x
    x = 42,237,691,935.26/173,135.70
  6. Step 6: Final answer
    x = 243,957.15

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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.