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Finding the Fourth Proportional to 125,021.70, 187,532.55 and 50,153.40

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Solution

The fourth proportional to 125,021.70, 187,532.55 and 50,153.40 is: 75,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,021.70 : 187,532.55 = 50,153.40 : x
  2. Step 2: Convert to fraction form
    125,021.70/187,532.55 = 50,153.40/x
  3. Step 3: Cross multiply
    125,021.70x = 187,532.55 × 50,153.40
  4. Step 4: Simplify right side
    125,021.70x = 9,405,394,993.17
  5. Step 5: Solve for x
    x = 9,405,394,993.17/125,021.70
  6. Step 6: Final answer
    x = 75,230.10

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1.5x scale

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.