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Finding the Fourth Proportional to 112,866.48, 169,317.63 and 45,398.34

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Solution

The fourth proportional to 112,866.48, 169,317.63 and 45,398.34 is: 68,104.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,866.48 : 169,317.63 = 45,398.34 : x
  2. Step 2: Convert to fraction form
    112,866.48/169,317.63 = 45,398.34/x
  3. Step 3: Cross multiply
    112,866.48x = 169,317.63 × 45,398.34
  4. Step 4: Simplify right side
    112,866.48x = 7,686,739,334.73
  5. Step 5: Solve for x
    x = 7,686,739,334.73/112,866.48
  6. Step 6: Final answer
    x = 68,104.71

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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.