Home / 121,284.45-181,946.10-51,174.09

Finding the Fourth Proportional to 121,284.45, 181,946.10 and 51,174.09

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Solution

The fourth proportional to 121,284.45, 181,946.10 and 51,174.09 is: 76,769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,284.45 : 181,946.10 = 51,174.09 : x
  2. Step 2: Convert to fraction form
    121,284.45/181,946.10 = 51,174.09/x
  3. Step 3: Cross multiply
    121,284.45x = 181,946.10 × 51,174.09
  4. Step 4: Simplify right side
    121,284.45x = 9,310,926,096.55
  5. Step 5: Solve for x
    x = 9,310,926,096.55/121,284.45
  6. Step 6: Final answer
    x = 76,769.33

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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.