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Finding the Fourth Proportional to 121,026.78, 181,541.48 and 36,800.66

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Solution

The fourth proportional to 121,026.78, 181,541.48 and 36,800.66 is: 55,201.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,026.78 : 181,541.48 = 36,800.66 : x
  2. Step 2: Convert to fraction form
    121,026.78/181,541.48 = 36,800.66/x
  3. Step 3: Cross multiply
    121,026.78x = 181,541.48 × 36,800.66
  4. Step 4: Simplify right side
    121,026.78x = 6,680,846,281.38
  5. Step 5: Solve for x
    x = 6,680,846,281.38/121,026.78
  6. Step 6: Final answer
    x = 55,201.39

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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.