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Finding the Fourth Proportional to 103,282.60, 142,507.86 and 67,525.12

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Solution

The fourth proportional to 103,282.60, 142,507.86 and 67,525.12 is: 93,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,282.60 : 142,507.86 = 67,525.12 : x
  2. Step 2: Convert to fraction form
    103,282.60/142,507.86 = 67,525.12/x
  3. Step 3: Cross multiply
    103,282.60x = 142,507.86 × 67,525.12
  4. Step 4: Simplify right side
    103,282.60x = 9,622,860,347.44
  5. Step 5: Solve for x
    x = 9,622,860,347.44/103,282.60
  6. Step 6: Final answer
    x = 93,170.20

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