Home / 121,805.24-182,722.70-51,660.86

Finding the Fourth Proportional to 121,805.24, 182,722.70 and 51,660.86

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Solution

The fourth proportional to 121,805.24, 182,722.70 and 51,660.86 is: 77,497.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,805.24 : 182,722.70 = 51,660.86 : x
  2. Step 2: Convert to fraction form
    121,805.24/182,722.70 = 51,660.86/x
  3. Step 3: Cross multiply
    121,805.24x = 182,722.70 × 51,660.86
  4. Step 4: Simplify right side
    121,805.24x = 9,439,611,039.06
  5. Step 5: Solve for x
    x = 9,439,611,039.06/121,805.24
  6. Step 6: Final answer
    x = 77,497.58

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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.