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Finding the Fourth Proportional to 114,115.20, 171,159.84 and 43,988.64

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Solution

The fourth proportional to 114,115.20, 171,159.84 and 43,988.64 is: 65,977.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,115.20 : 171,159.84 = 43,988.64 : x
  2. Step 2: Convert to fraction form
    114,115.20/171,159.84 = 43,988.64/x
  3. Step 3: Cross multiply
    114,115.20x = 171,159.84 × 43,988.64
  4. Step 4: Simplify right side
    114,115.20x = 7,529,088,584.22
  5. Step 5: Solve for x
    x = 7,529,088,584.22/114,115.20
  6. Step 6: Final answer
    x = 65,977.96

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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.