Home / 109,527.12-151,046.28-69,170.64

Finding the Fourth Proportional to 109,527.12, 151,046.28 and 69,170.64

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Solution

The fourth proportional to 109,527.12, 151,046.28 and 69,170.64 is: 95,391.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,527.12 : 151,046.28 = 69,170.64 : x
  2. Step 2: Convert to fraction form
    109,527.12/151,046.28 = 69,170.64/x
  3. Step 3: Cross multiply
    109,527.12x = 151,046.28 × 69,170.64
  4. Step 4: Simplify right side
    109,527.12x = 10,447,967,857.22
  5. Step 5: Solve for x
    x = 10,447,967,857.22/109,527.12
  6. Step 6: Final answer
    x = 95,391.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.