Home / 103,751.81-155,676.32-51,132.59

Finding the Fourth Proportional to 103,751.81, 155,676.32 and 51,132.59

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Solution

The fourth proportional to 103,751.81, 155,676.32 and 51,132.59 is: 76,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,751.81 : 155,676.32 = 51,132.59 : x
  2. Step 2: Convert to fraction form
    103,751.81/155,676.32 = 51,132.59/x
  3. Step 3: Cross multiply
    103,751.81x = 155,676.32 × 51,132.59
  4. Step 4: Simplify right side
    103,751.81x = 7,960,133,443.27
  5. Step 5: Solve for x
    x = 7,960,133,443.27/103,751.81
  6. Step 6: Final answer
    x = 76,722.84

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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.