Home / 102,020.22-140,808.87-64,269.18

Finding the Fourth Proportional to 102,020.22, 140,808.87 and 64,269.18

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Solution

The fourth proportional to 102,020.22, 140,808.87 and 64,269.18 is: 88,704.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020.22 : 140,808.87 = 64,269.18 : x
  2. Step 2: Convert to fraction form
    102,020.22/140,808.87 = 64,269.18/x
  3. Step 3: Cross multiply
    102,020.22x = 140,808.87 × 64,269.18
  4. Step 4: Simplify right side
    102,020.22x = 9,049,670,611.63
  5. Step 5: Solve for x
    x = 9,049,670,611.63/102,020.22
  6. Step 6: Final answer
    x = 88,704.68

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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.