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Finding the Fourth Proportional to 159,662.64, 220,329.40 and 88,045.68

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Solution

The fourth proportional to 159,662.64, 220,329.40 and 88,045.68 is: 121,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,662.64 : 220,329.40 = 88,045.68 : x
  2. Step 2: Convert to fraction form
    159,662.64/220,329.40 = 88,045.68/x
  3. Step 3: Cross multiply
    159,662.64x = 220,329.40 × 88,045.68
  4. Step 4: Simplify right side
    159,662.64x = 19,399,051,846.99
  5. Step 5: Solve for x
    x = 19,399,051,846.99/159,662.64
  6. Step 6: Final answer
    x = 121,500.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.