Home / 100,784.10-151,149.15-30,644.58

Finding the Fourth Proportional to 100,784.10, 151,149.15 and 30,644.58

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Solution

The fourth proportional to 100,784.10, 151,149.15 and 30,644.58 is: 45,958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,784.10 : 151,149.15 = 30,644.58 : x
  2. Step 2: Convert to fraction form
    100,784.10/151,149.15 = 30,644.58/x
  3. Step 3: Cross multiply
    100,784.10x = 151,149.15 × 30,644.58
  4. Step 4: Simplify right side
    100,784.10x = 4,631,902,219.11
  5. Step 5: Solve for x
    x = 4,631,902,219.11/100,784.10
  6. Step 6: Final answer
    x = 45,958.66

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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.