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Finding the Fourth Proportional to 134,778.80, 201,811.80 and 108,000.20

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Solution

The fourth proportional to 134,778.80, 201,811.80 and 108,000.20 is: 161,714.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,778.80 : 201,811.80 = 108,000.20 : x
  2. Step 2: Convert to fraction form
    134,778.80/201,811.80 = 108,000.20/x
  3. Step 3: Cross multiply
    134,778.80x = 201,811.80 × 108,000.20
  4. Step 4: Simplify right side
    134,778.80x = 21,795,714,762.36
  5. Step 5: Solve for x
    x = 21,795,714,762.36/134,778.80
  6. Step 6: Final answer
    x = 161,714.71

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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.