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Finding the Fourth Proportional to 114,518.40, 172,238.40 and 102,537.60

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Solution

The fourth proportional to 114,518.40, 172,238.40 and 102,537.60 is: 154,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,518.40 : 172,238.40 = 102,537.60 : x
  2. Step 2: Convert to fraction form
    114,518.40/172,238.40 = 102,537.60/x
  3. Step 3: Cross multiply
    114,518.40x = 172,238.40 × 102,537.60
  4. Step 4: Simplify right side
    114,518.40x = 17,660,912,163.84
  5. Step 5: Solve for x
    x = 17,660,912,163.84/114,518.40
  6. Step 6: Final answer
    x = 154,218.99

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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.