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Finding the Fourth Proportional to 100,166.80, 150,031.86 and 50,159.68

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Solution

The fourth proportional to 100,166.80, 150,031.86 and 50,159.68 is: 75,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,166.80 : 150,031.86 = 50,159.68 : x
  2. Step 2: Convert to fraction form
    100,166.80/150,031.86 = 50,159.68/x
  3. Step 3: Cross multiply
    100,166.80x = 150,031.86 × 50,159.68
  4. Step 4: Simplify right side
    100,166.80x = 7,525,550,087.40
  5. Step 5: Solve for x
    x = 7,525,550,087.40/100,166.80
  6. Step 6: Final answer
    x = 75,130.18

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1.5x scale

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.