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Finding the Fourth Proportional to 145,561.25, 218,329.33 and 88,620.41

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Solution

The fourth proportional to 145,561.25, 218,329.33 and 88,620.41 is: 132,922.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,561.25 : 218,329.33 = 88,620.41 : x
  2. Step 2: Convert to fraction form
    145,561.25/218,329.33 = 88,620.41/x
  3. Step 3: Cross multiply
    145,561.25x = 218,329.33 × 88,620.41
  4. Step 4: Simplify right side
    145,561.25x = 19,348,434,739.63
  5. Step 5: Solve for x
    x = 19,348,434,739.63/145,561.25
  6. Step 6: Final answer
    x = 132,922.98

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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.