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Finding the Fourth Proportional to 100,707.45, 151,102.08 and 50,802

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Solution

The fourth proportional to 100,707.45, 151,102.08 and 50,802 is: 76,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,707.45 : 151,102.08 = 50,802 : x
  2. Step 2: Convert to fraction form
    100,707.45/151,102.08 = 50,802/x
  3. Step 3: Cross multiply
    100,707.45x = 151,102.08 × 50,802
  4. Step 4: Simplify right side
    100,707.45x = 7,676,287,868.16
  5. Step 5: Solve for x
    x = 7,676,287,868.16/100,707.45
  6. Step 6: Final answer
    x = 76,223.63

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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.