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Finding the Fourth Proportional to 101,136.74, 151,678.84 and 30,042.67

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Solution

The fourth proportional to 101,136.74, 151,678.84 and 30,042.67 is: 45,056.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,136.74 : 151,678.84 = 30,042.67 : x
  2. Step 2: Convert to fraction form
    101,136.74/151,678.84 = 30,042.67/x
  3. Step 3: Cross multiply
    101,136.74x = 151,678.84 × 30,042.67
  4. Step 4: Simplify right side
    101,136.74x = 4,556,836,616.18
  5. Step 5: Solve for x
    x = 4,556,836,616.18/101,136.74
  6. Step 6: Final answer
    x = 45,056.19

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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.