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Finding the Fourth Proportional to 103,597.74, 155,361.29 and 40,412.88

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Solution

The fourth proportional to 103,597.74, 155,361.29 and 40,412.88 is: 60,605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,597.74 : 155,361.29 = 40,412.88 : x
  2. Step 2: Convert to fraction form
    103,597.74/155,361.29 = 40,412.88/x
  3. Step 3: Cross multiply
    103,597.74x = 155,361.29 × 40,412.88
  4. Step 4: Simplify right side
    103,597.74x = 6,278,596,967.35
  5. Step 5: Solve for x
    x = 6,278,596,967.35/103,597.74
  6. Step 6: Final answer
    x = 60,605.54

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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.