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Finding the Fourth Proportional to 170,874.46, 235,808.31 and 99,257.50

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Solution

The fourth proportional to 170,874.46, 235,808.31 and 99,257.50 is: 136,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,874.46 : 235,808.31 = 99,257.50 : x
  2. Step 2: Convert to fraction form
    170,874.46/235,808.31 = 99,257.50/x
  3. Step 3: Cross multiply
    170,874.46x = 235,808.31 × 99,257.50
  4. Step 4: Simplify right side
    170,874.46x = 23,405,743,329.83
  5. Step 5: Solve for x
    x = 23,405,743,329.83/170,874.46
  6. Step 6: Final answer
    x = 136,976.25

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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.