Home / 100,780.59-151,193.37-30,665.37

Finding the Fourth Proportional to 100,780.59, 151,193.37 and 30,665.37

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Solution

The fourth proportional to 100,780.59, 151,193.37 and 30,665.37 is: 46,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,780.59 : 151,193.37 = 30,665.37 : x
  2. Step 2: Convert to fraction form
    100,780.59/151,193.37 = 30,665.37/x
  3. Step 3: Cross multiply
    100,780.59x = 151,193.37 × 30,665.37
  4. Step 4: Simplify right side
    100,780.59x = 4,636,400,632.60
  5. Step 5: Solve for x
    x = 4,636,400,632.60/100,780.59
  6. Step 6: Final answer
    x = 46,004.90

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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.