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Finding the Fourth Proportional to 183,658.50, 275,474.79 and 90,130.50

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Solution

The fourth proportional to 183,658.50, 275,474.79 and 90,130.50 is: 135,189.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,658.50 : 275,474.79 = 90,130.50 : x
  2. Step 2: Convert to fraction form
    183,658.50/275,474.79 = 90,130.50/x
  3. Step 3: Cross multiply
    183,658.50x = 275,474.79 × 90,130.50
  4. Step 4: Simplify right side
    183,658.50x = 24,828,680,560.10
  5. Step 5: Solve for x
    x = 24,828,680,560.10/183,658.50
  6. Step 6: Final answer
    x = 135,189.39

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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.