Home / 103,177.89-154,767.05-28,299.10

Finding the Fourth Proportional to 103,177.89, 154,767.05 and 28,299.10

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Solution

The fourth proportional to 103,177.89, 154,767.05 and 28,299.10 is: 42,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,177.89 : 154,767.05 = 28,299.10 : x
  2. Step 2: Convert to fraction form
    103,177.89/154,767.05 = 28,299.10/x
  3. Step 3: Cross multiply
    103,177.89x = 154,767.05 × 28,299.10
  4. Step 4: Simplify right side
    103,177.89x = 4,379,768,224.66
  5. Step 5: Solve for x
    x = 4,379,768,224.66/103,177.89
  6. Step 6: Final answer
    x = 42,448.71

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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.