Home / 121,306.60-181,984.46-51,185.80

Finding the Fourth Proportional to 121,306.60, 181,984.46 and 51,185.80

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Solution

The fourth proportional to 121,306.60, 181,984.46 and 51,185.80 is: 76,789.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,306.60 : 181,984.46 = 51,185.80 : x
  2. Step 2: Convert to fraction form
    121,306.60/181,984.46 = 51,185.80/x
  3. Step 3: Cross multiply
    121,306.60x = 181,984.46 × 51,185.80
  4. Step 4: Simplify right side
    121,306.60x = 9,315,020,172.67
  5. Step 5: Solve for x
    x = 9,315,020,172.67/121,306.60
  6. Step 6: Final answer
    x = 76,789.06

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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.