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Finding the Fourth Proportional to 121,267.82, 181,893.25 and 45,351.91

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Solution

The fourth proportional to 121,267.82, 181,893.25 and 45,351.91 is: 68,024.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,267.82 : 181,893.25 = 45,351.91 : x
  2. Step 2: Convert to fraction form
    121,267.82/181,893.25 = 45,351.91/x
  3. Step 3: Cross multiply
    121,267.82x = 181,893.25 × 45,351.91
  4. Step 4: Simplify right side
    121,267.82x = 8,249,206,303.61
  5. Step 5: Solve for x
    x = 8,249,206,303.61/121,267.82
  6. Step 6: Final answer
    x = 68,024.69

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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.