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Finding the Fourth Proportional to 121,126.37, 181,698.80 and 36,893.70

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Solution

The fourth proportional to 121,126.37, 181,698.80 and 36,893.70 is: 55,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,126.37 : 181,698.80 = 36,893.70 : x
  2. Step 2: Convert to fraction form
    121,126.37/181,698.80 = 36,893.70/x
  3. Step 3: Cross multiply
    121,126.37x = 181,698.80 × 36,893.70
  4. Step 4: Simplify right side
    121,126.37x = 6,703,540,833.09
  5. Step 5: Solve for x
    x = 6,703,540,833.09/121,126.37
  6. Step 6: Final answer
    x = 55,343.37

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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.