Home / 109,527.30-151,163.28-61,785.09

Finding the Fourth Proportional to 109,527.30, 151,163.28 and 61,785.09

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Solution

The fourth proportional to 109,527.30, 151,163.28 and 61,785.09 is: 85,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,527.30 : 151,163.28 = 61,785.09 : x
  2. Step 2: Convert to fraction form
    109,527.30/151,163.28 = 61,785.09/x
  3. Step 3: Cross multiply
    109,527.30x = 151,163.28 × 61,785.09
  4. Step 4: Simplify right side
    109,527.30x = 9,339,636,859.50
  5. Step 5: Solve for x
    x = 9,339,636,859.50/109,527.30
  6. Step 6: Final answer
    x = 85,272.23

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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.