Home / 100,886.74-151,329.70-30,765.85

Finding the Fourth Proportional to 100,886.74, 151,329.70 and 30,765.85

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Solution

The fourth proportional to 100,886.74, 151,329.70 and 30,765.85 is: 46,148.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,886.74 : 151,329.70 = 30,765.85 : x
  2. Step 2: Convert to fraction form
    100,886.74/151,329.70 = 30,765.85/x
  3. Step 3: Cross multiply
    100,886.74x = 151,329.70 × 30,765.85
  4. Step 4: Simplify right side
    100,886.74x = 4,655,786,850.75
  5. Step 5: Solve for x
    x = 4,655,786,850.75/100,886.74
  6. Step 6: Final answer
    x = 46,148.65

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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.