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Finding the Fourth Proportional to 110,272.68, 152,210.52 and 87,651.78

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Solution

The fourth proportional to 110,272.68, 152,210.52 and 87,651.78 is: 120,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,272.68 : 152,210.52 = 87,651.78 : x
  2. Step 2: Convert to fraction form
    110,272.68/152,210.52 = 87,651.78/x
  3. Step 3: Cross multiply
    110,272.68x = 152,210.52 × 87,651.78
  4. Step 4: Simplify right side
    110,272.68x = 13,341,523,012.73
  5. Step 5: Solve for x
    x = 13,341,523,012.73/110,272.68
  6. Step 6: Final answer
    x = 120,986.66

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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.