Home / 103,400.28-155,027.99-52,814.70

Finding the Fourth Proportional to 103,400.28, 155,027.99 and 52,814.70

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Solution

The fourth proportional to 103,400.28, 155,027.99 and 52,814.70 is: 79,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,400.28 : 155,027.99 = 52,814.70 : x
  2. Step 2: Convert to fraction form
    103,400.28/155,027.99 = 52,814.70/x
  3. Step 3: Cross multiply
    103,400.28x = 155,027.99 × 52,814.70
  4. Step 4: Simplify right side
    103,400.28x = 8,187,756,915.49
  5. Step 5: Solve for x
    x = 8,187,756,915.49/103,400.28
  6. Step 6: Final answer
    x = 79,185.06

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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.