Home / 103,614.94-155,372.91-47,438.14

Finding the Fourth Proportional to 103,614.94, 155,372.91 and 47,438.14

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Solution

The fourth proportional to 103,614.94, 155,372.91 and 47,438.14 is: 71,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.94 : 155,372.91 = 47,438.14 : x
  2. Step 2: Convert to fraction form
    103,614.94/155,372.91 = 47,438.14/x
  3. Step 3: Cross multiply
    103,614.94x = 155,372.91 × 47,438.14
  4. Step 4: Simplify right side
    103,614.94x = 7,370,601,856.79
  5. Step 5: Solve for x
    x = 7,370,601,856.79/103,614.94
  6. Step 6: Final answer
    x = 71,134.55

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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.