Home / 103,687.10-155,529.59-47,511.27

Finding the Fourth Proportional to 103,687.10, 155,529.59 and 47,511.27

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Solution

The fourth proportional to 103,687.10, 155,529.59 and 47,511.27 is: 71,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,687.10 : 155,529.59 = 47,511.27 : x
  2. Step 2: Convert to fraction form
    103,687.10/155,529.59 = 47,511.27/x
  3. Step 3: Cross multiply
    103,687.10x = 155,529.59 × 47,511.27
  4. Step 4: Simplify right side
    103,687.10x = 7,389,408,343.48
  5. Step 5: Solve for x
    x = 7,389,408,343.48/103,687.10
  6. Step 6: Final answer
    x = 71,266.42

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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.