Home / 100,678.20-151,006.90-34,116.60

Finding the Fourth Proportional to 100,678.20, 151,006.90 and 34,116.60

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Solution

The fourth proportional to 100,678.20, 151,006.90 and 34,116.60 is: 51,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,678.20 : 151,006.90 = 34,116.60 : x
  2. Step 2: Convert to fraction form
    100,678.20/151,006.90 = 34,116.60/x
  3. Step 3: Cross multiply
    100,678.20x = 151,006.90 × 34,116.60
  4. Step 4: Simplify right side
    100,678.20x = 5,151,842,004.54
  5. Step 5: Solve for x
    x = 5,151,842,004.54/100,678.20
  6. Step 6: Final answer
    x = 51,171.38

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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.