Home / 145,609.03-218,413.30-45,777.94

Finding the Fourth Proportional to 145,609.03, 218,413.30 and 45,777.94

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Solution

The fourth proportional to 145,609.03, 218,413.30 and 45,777.94 is: 68,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,609.03 : 218,413.30 = 45,777.94 : x
  2. Step 2: Convert to fraction form
    145,609.03/218,413.30 = 45,777.94/x
  3. Step 3: Cross multiply
    145,609.03x = 218,413.30 × 45,777.94
  4. Step 4: Simplify right side
    145,609.03x = 9,998,510,942.60
  5. Step 5: Solve for x
    x = 9,998,510,942.60/145,609.03
  6. Step 6: Final answer
    x = 68,666.83

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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.