Home / 187,881.42-281,740.21-71,063.50

Finding the Fourth Proportional to 187,881.42, 281,740.21 and 71,063.50

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Solution

The fourth proportional to 187,881.42, 281,740.21 and 71,063.50 is: 106,564.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,881.42 : 281,740.21 = 71,063.50 : x
  2. Step 2: Convert to fraction form
    187,881.42/281,740.21 = 71,063.50/x
  3. Step 3: Cross multiply
    187,881.42x = 281,740.21 × 71,063.50
  4. Step 4: Simplify right side
    187,881.42x = 20,021,445,413.34
  5. Step 5: Solve for x
    x = 20,021,445,413.34/187,881.42
  6. Step 6: Final answer
    x = 106,564.26

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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.