Home / 100,800.42-151,156.94-30,663.54

Finding the Fourth Proportional to 100,800.42, 151,156.94 and 30,663.54

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Solution

The fourth proportional to 100,800.42, 151,156.94 and 30,663.54 is: 45,982.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,800.42 : 151,156.94 = 30,663.54 : x
  2. Step 2: Convert to fraction form
    100,800.42/151,156.94 = 30,663.54/x
  3. Step 3: Cross multiply
    100,800.42x = 151,156.94 × 30,663.54
  4. Step 4: Simplify right side
    100,800.42x = 4,635,006,875.97
  5. Step 5: Solve for x
    x = 4,635,006,875.97/100,800.42
  6. Step 6: Final answer
    x = 45,982.02

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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.